Conjugation of to prevent

All tenses of the English verb, with every person.

to prevent
To stop (an outcome); to keep from (doing something).
regular verb
Infinitiveprevent
Past simpleprevented
Past participleprevented
-ing formpreventing
Full conjugation of the English verb to prevent (past simple prevented, past participle prevented): present simple and continuous, past simple and continuous, present perfect, past perfect, future, conditional, subjunctive and imperative, with all persons.

Indicative

Present simple

I prevent
you prevent
he/she/it prevents
we prevent
you prevent
they prevent

Present continuous

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

Present perfect

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

Present perfect continuous

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

Past simple

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

Past continuous

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

Past perfect

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

Past perfect continuous

I had been preventing
you had been preventing
he/she/it had been preventing
we had been preventing
you had been preventing
they had been preventing

Future simple

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

Future continuous

I will be preventing
you will be preventing
he/she/it will be preventing
we will be preventing
you will be preventing
they will be preventing

Future perfect

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

Future perfect continuous

I will have been preventing
you will have been preventing
he/she/it will have been preventing
we will have been preventing
you will have been preventing
they will have been preventing

Conditional

Present

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

Present continuous

I would be preventing
you would be preventing
he/she/it would be preventing
we would be preventing
you would be preventing
they would be preventing

Perfect

I would have prevented
you would have prevented
he/she/it would have prevented
we would have prevented
you would have prevented
they would have prevented

Perfect continuous

I would have been preventing
you would have been preventing
he/she/it would have been preventing
we would have been preventing
you would have been preventing
they would have been preventing

Subjunctive

Present

that I prevent
that you prevent
that he/she/it prevent
that we prevent
that you prevent
that they prevent

Past

if I prevented
if you prevented
if he/she/it prevented
if we prevented
if you prevented
if they prevented

Imperative

Affirmative

you prevent
we let's prevent

Negative

you don't prevent
we let's not prevent

Non-finite forms

Infinitive

to prevent

Perfect infinitive

to have prevented

Present participle / gerund

preventing

Past participle

prevented

Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.