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begin

Irregular verb — eleven tense patterns across all persons

Irregular forms

base: beginpast: beganpast participle: begun

Third person singular adds -s or -es.

I	you	he/she/it	we	they
I begin	you begin	he/she/it begins	we begin	they begin

am / is / are + -ing.

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

have / has + past participle.

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

have / has been + -ing.

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

One form for every person.

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

was / were + -ing.

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

had + past participle.

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

will + base form, the same for every person.

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

will have + past participle.

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

would + base form.

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

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

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