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do

Irregular verb — eleven tense patterns across all persons

Irregular forms

base: dopast: didpast participle: done

Third person singular adds -s or -es.

I	you	he/she/it	we	they
I do	you do	he/she/it does	we do	they do

am / is / are + -ing.

I	you	he/she/it	we	they
I am doing	you are doing	he/she/it is doing	we are doing	they are doing

have / has + past participle.

I	you	he/she/it	we	they
I have done	you have done	he/she/it has done	we have done	they have done

have / has been + -ing.

I	you	he/she/it	we	they
I have been doing	you have been doing	he/she/it has been doing	we have been doing	they have been doing

One form for every person.

I	you	he/she/it	we	they
I did	you did	he/she/it did	we did	they did

was / were + -ing.

I	you	he/she/it	we	they
I was doing	you were doing	he/she/it was doing	we were doing	they were doing

had + past participle.

I	you	he/she/it	we	they
I had done	you had done	he/she/it had done	we had done	they had done

will + base form, the same for every person.

I	you	he/she/it	we	they
I will do	you will do	he/she/it will do	we will do	they will do

will have + past participle.

I	you	he/she/it	we	they
I will have done	you will have done	he/she/it will have done	we will have done	they will have done

would + base form.

I	you	he/she/it	we	they
I would do	you would do	he/she/it would do	we would do	they would do

Required after insist, demand, suggest and in formal that-clauses.

I	you	he/she/it	we	they
I do	you do	he/she/it do	we do	they do