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Indicative

Present Simple
Perfect Simple
Past Simple
Pluperfect Simple
Future Simple
Future perfect Simple
Present Continuous
Perfect Continuous
Past Continuous
Pluperfect Continuous
Future Continuous
Future perfect Continuous
I act upon
you act upon
he/she/it acts upon
we act upon
they act upon
I have acted upon
you have acted upon
he/she/it has acted upon
we have acted upon
they have acted upon
I acted upon
you acted upon
he/she/it acted upon
we acted upon
they acted upon
I had acted upon
you had acted upon
he/she/it had acted upon
we had acted upon
they had acted upon
I will act upon
you will act upon
he/she/it will act upon
we will act upon
they will act upon
I will have acted upon
you will have acted upon
he/she/it will have acted upon
we will have acted upon
they will have acted upon
I am acting upon
you are acting upon
he/she/it is acting upon
we are acting upon
they are acting upon
I have been acting upon
you have been acting upon
he/she/it has been acting upon
we have been acting upon
they have been acting upon
I was acting upon
you were acting upon
he/she/it was acting upon
we were acting upon
they were acting upon
I had been acting upon
you had been acting upon
he/she/it had been acting upon
we had been acting upon
they had been acting upon
I will be acting upon
you will be acting upon
he/she/it will be acting upon
we will be acting upon
they will be acting upon
I will have been acting upon
you will have been acting upon
he/she/it will have been acting upon
we will have been acting upon
they will have been acting upon

Subjunctive

Present Simple
Perfect Simple
Imperfect Simple
Pluperfect Simple
I act upon
you act upon
he/she/it act upon
we act upon
they act upon
I have acted upon
you have acted upon
he/she/it have acted upon
we have acted upon
they have acted upon
I acted upon
you acted upon
he/she/it acted upon
we acted upon
they acted upon
I had acted upon
you had acted upon
he/she/it had acted upon
we had acted upon
they had acted upon

Conditional

Present Simple
Perfect Simple
Present Continuous
Perfect Continuous
I would act upon
you would act upon
he/she/it would act upon
we would act upon
they would act upon
I would have acted upon
you would have acted upon
he/she/it would have acted upon
we would have acted upon
they would have acted upon
I would be acting upon
you would be acting upon
he/she/it would be acting upon
we would be acting upon
they would be acting upon
I would have been acting upon
you would have been acting upon
he/she/it would have been acting upon
we would have been acting upon
they would have been acting upon

Imperative

you act upon
we Let's act upon

← Conjugate another English verb

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