Uses of verb to do [As main verb and Helping/auxiliary verb]

Forms of verb "To do"

Present (V1)	Past (V2)	Past Participle (V3)	Present Participle
do, does	did	done	doing

1. "To do" as a main verb

When used as a main verb, "to do" expresses the action of performing or executing something.

“To do” - As a main verb

1. Present form - do, does

Positive	Negative	Yes/No Question	Wh Question
I do my homework every day.	I do not do my homework on weekends.	Do you do your homework?	What do you do for fun?
You do great work.	You do not do great work when you're tired.	Do you do great work?	How do you do such great work?
He does his job well.	He does not do his job well under pressure.	Does he do his job well?	What does he do for work?
She does her chores promptly.	She does not do her chores late.	Does she do her chores?	Why does she do her chores?
It does what it needs to do.	It does not do anything wrong.	Does it do what it needs to do?	What does it do?
We do our best every day.	We do not do our best when we are unwell.	Do we do our best?	How do we do our best?
They do their part in the project.	They do not do their part.	Do they do their part?	What do they do for the project?
The student does his homework.	The student does not do his homework on time.	Does the student do his homework?	When does the student do his homework?
The dogs do their tricks.	The dogs do not do their tricks well.	Do the dogs do their tricks?	What do the dogs do?

2. Past form - did

Positive	Negative	Yes/No Question	Wh Question
I did my homework yesterday.	I did not do my homework last night.	Did you do your homework?	What did you do yesterday?
You did a great job.	You did not do a great job.	Did you do a great job?	How did you do that?
He did his work well.	He did not do his work well.	Did he do his work well?	What did he do for work?
She did her chores yesterday.	She did not do her chores.	Did she do her chores?	When did she do her chores?
It did what it was supposed to do.	It did not do anything wrong.	Did it do what it was supposed to do?	What did it do?
We did our best.	We did not do our best today.	Did we do our best?	How did we do our best?
They did their part in the project.	They did not do their part.	Did they do their part?	What did they do for the project?
The student did his homework.	The student did not do his homework on time.	Did the student do his homework?	When did the student do his homework?
The dogs did their tricks.	The dogs did not do their tricks well.	Did the dogs do their tricks?	What did the dogs do?

3. Past participle - done

This form is used with auxiliary verbs (like "have", "had" or "will have") to form perfect tenses.

Present Perfect Tense:

Positive	Negative	Yes/No Question	Wh Question
I have done my homework.	I have not done my homework.	Have you done your homework?	What have you done?
You have done a great job.	You have not done a great job.	Have you done a great job?	How have you done it?
He has done his work well.	He has not done his work well.	Has he done his work?	What has he done for work?
She has done her chores.	She has not done her chores.	Has she done her chores?	When has she done her chores?
It has been done successfully.	It has not been done successfully.	Has it been done successfully?	What has been done successfully?
We have done our best.	We have not done our best.	Have we done our best?	How have we done our best?
They have done their part in the project.	They have not done their part.	Have they done their part?	What have they done for the project?
The student has done his homework.	The student has not done his homework.	Has the student done his homework?	When has the student done his homework?
The dogs have done their tricks.	The dogs have not done their tricks well.	Have the dogs done their tricks?	What have the dogs done?

Past Perfect Tense:

Positive	Negative	Yes/No Question	Wh Question
I had done my homework.	I had not done my homework.	Had I done my homework?	What had I done?
You had done well.	You had not done well.	Had you done well?	What had you done?
He had done the task.	He had not done the task.	Had he done the task?	What had he done?
She had done everything.	She had not done everything.	Had she done everything?	What had she done?
It had been done earlier.	It had not been done earlier.	Had it been done earlier?	What had been done earlier?
We had done our best.	We had not done our best.	Had we done our best?	What had we done?
They had done the project.	They had not done the project.	Had they done the project?	What had they done?
The students had done their homework.	The students had not done their homework.	Had the students done their homework?	What had the students done?

Future Perfect Tense:

Positive	Negative	Yes/No Question	Wh Question
I will have done my homework.	I will not have done my homework.	Will I have done my homework?	What will I have done?
You will have done well.	You will not have done well.	Will you have done well?	What will you have done?
He will have done the task.	He will not have done the task.	Will he have done the task?	What will he have done?
She will have done everything.	She will not have done everything.	Will she have done everything?	What will she have done?
It will have been done earlier. (Passive Voice)	It will not have been done earlier.	Will it have been done earlier?	What will have been done earlier?
We will have done our best.	We will not have done our best.	Will we have done our best?	What will we have done?
They will have done the project.	They will not have done the project.	Will they have done the project?	What will they have done?
The students will have done their homework.	The students will not have done their homework.	Will the students have done their homework?	What will the students have done?

4. Present participle - doing

This form is used in continuous (progressive) tenses.

Present Continuous Tense:

Positive	Negative	Yes/No Question	Wh Question
I am doing my homework.	I am not doing my homework.	Am I doing my homework?	What am I doing?
You are doing great!	You are not doing great.	Are you doing great?	How are you doing?
He is doing his job well.	He is not doing his job well.	Is he doing his job?	What is he doing?
She is doing her chores.	She is not doing her chores.	Is she doing her chores?	When is she doing her chores?
It is doing well.	It is not doing well.	Is it doing well?	What is it doing?
We are doing our best.	We are not doing our best.	Are we doing our best?	How are we doing our best?
They are doing their part in the project.	They are not doing their part.	Are they doing their part?	What are they doing for the project?
The student is doing his homework.	The student is not doing his homework.	Is the student doing his homework?	When is the student doing his homework?
The dogs are doing their tricks.	The dogs are not doing their tricks well.	Are the dogs doing their tricks?	What are the dogs doing?

Past Continuous Tense:

Positive	Negative	Yes/No Question	Wh Question
I was doing my homework.	I was not doing my homework.	Was I doing my homework?	What was I doing?
You were doing well.	You were not doing well.	Were you doing well?	What were you doing?
He was doing the task.	He was not doing the task.	Was he doing the task?	What was he doing?
She was doing everything.	She was not doing everything.	Was she doing everything?	What was she doing?
It was doing its best in the game.	It was not doing its best in the game.	Was it doing its best in the game?	How was it doing its best in the game.?
We were doing our best.	We were not doing our best.	Were we doing our best?	What were we doing?
They were doing the project.	They were not doing the project.	Were they doing the project?	What were they doing?
The students were doing their homework.	The students were not doing their homework.	Were the students doing their homework?	What were the students doing?

Future Continuous Tense:

Positive	Negative	Yes/No Question	Wh Question
I will be doing my homework.	I will not be doing my homework.	Will I be doing my homework?	What will I be doing?
You will be doing well.	You will not be doing well.	Will you be doing well?	What will you be doing?
He will be doing the task.	He will not be doing the task.	Will he be doing the task?	What will he be doing?
She will be doing everything.	She will not be doing everything.	Will she be doing everything?	What will she be doing?
It will be doing its routine exercise tomorrow.	It will not be doing its routine exercise tomorrow.	Will it be doing its routine exercise tomorrow?	What will it be doing tomorrow?
We will be doing our best.	We will not be doing our best.	Will we be doing our best?	What will we be doing?
They will be doing the project.	They will not be doing the project.	Will they be doing the project?	What will they be doing?
The students will be doing their homework.	The students will not be doing their homework.	Will the students be doing their homework?	What will the students be doing?

2. "To do" as a helping/auxiliary verb

“To do” - As a helping verb

1. Present form - do, does

This form of the verb is used in the Simple Present Tense as a helping/ auxiliary verb.

Positive	Negative	Yes/No Question	Wh Question
I like coffee.	I do not like coffee.	Do I like coffee?	What do I like?
You help me.	You do not help me.	Do you help me?	How do you help me?
He likes soccer.	He does not like soccer.	Does he like soccer?	What does he like?
She understands the topic.	She does not understand the topic.	Does she understand the topic?	How does she understand it?
It seems interesting.	It does not seem interesting.	Does it seem interesting?	What does it seem like?
We do enjoy the concert.	We do not enjoy the concert.	Do we enjoy the concert?	Why do we enjoy the concert?
They do play soccer every weekend.	They do not play soccer every weekend.	Do they play soccer every weekend?	What do they play?
The teacher explains the lesson.	The teacher does not explain the lesson.	Does the teacher explain the lesson?	What does the teacher explain?
The kids enjoy the park.	The kids do not enjoy the park.	Do the kids enjoy the park?	Where do the kids enjoy?

1. Past form - did

This form of the verb is used in the Simple Past Tense as a helping/ auxiliary verb.

Positive	Negative	Yes/No Question	Wh Question
I finished my homework.	I did not finish my homework.	Did I finish my homework?	What did I finish?
You called me.	You did not call me.	Did you call me?	When did you call me?
He finished the project.	He did not finish the project.	Did he finish the project?	What did he finish?
She saw the movie.	She did not see the movie.	Did she see the movie?	Which movie did she see?
It happened yesterday.	It did not happen yesterday.	Did it happen yesterday?	What did happen yesterday?
We enjoyed the trip.	We did not enjoy the trip.	Did we enjoy the trip?	Why did we enjoy the trip?
They completed their tasks.	They did not complete their tasks.	Did they complete their tasks?	What tasks did they complete?
The teacher explained the lesson.	The teacher did not explain the lesson.	Did the teacher explain the lesson?	What did the teacher explain?
The kids played at the park.	The kids did not play at the park.	Did the kids play at the park?	Where did the kids play?

The verb "to do" is essential in English for expressing actions, forming questions, creating negatives, emphasizing statements, and being part of idiomatic expressions and phrasal verbs.

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