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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 alter
you alter
he/she/it alters
we alter
they alter
I have altered
you have altered
he/she/it has altered
we have altered
they have altered
I altered
you altered
he/she/it altered
we altered
they altered
I had altered
you had altered
he/she/it had altered
we had altered
they had altered
I will alter
you will alter
he/she/it will alter
we will alter
they will alter
I will have altered
you will have altered
he/she/it will have altered
we will have altered
they will have altered
I am altering
you are altering
he/she/it is altering
we are altering
they are altering
I have been altering
you have been altering
he/she/it has been altering
we have been altering
they have been altering
I was altering
you were altering
he/she/it was altering
we were altering
they were altering
I had been altering
you had been altering
he/she/it had been altering
we had been altering
they had been altering
I will be altering
you will be altering
he/she/it will be altering
we will be altering
they will be altering
I will have been altering
you will have been altering
he/she/it will have been altering
we will have been altering
they will have been altering

Subjunctive

Present Simple
Perfect Simple
Imperfect Simple
Pluperfect Simple
I alter
you alter
he/she/it alter
we alter
they alter
I have altered
you have altered
he/she/it have altered
we have altered
they have altered
I altered
you altered
he/she/it altered
we altered
they altered
I had altered
you had altered
he/she/it had altered
we had altered
they had altered

Conditional

Present Simple
Perfect Simple
Present Continuous
Perfect Continuous
I would alter
you would alter
he/she/it would alter
we would alter
they would alter
I would have altered
you would have altered
he/she/it would have altered
we would have altered
they would have altered
I would be altering
you would be altering
he/she/it would be altering
we would be altering
they would be altering
I would have been altering
you would have been altering
he/she/it would have been altering
we would have been altering
they would have been altering

Imperative

you alter
we Let's alter

← Conjugate another English verb

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