Conjugations of the English verb alter can be found below. To conjugate any other English or French verb you can use the search box on the top of the page. Click the translation icon Translation button to translate each conjugation. To help you learn this verb you can test yourself on its conjugation. Do this by clicking on the yellow Test button on the top right.
 

Indicative

Present
T
I alter
you alter
she alters
we alter
they alter
Perfect
T
I have altered
you have altered
she has altered
we have altered
they have altered
Past
I altered
you altered
she altered
we altered
they altered
Pluperfect
I had altered
you had altered
she had altered
we had altered
they had altered
Future
I will alter
you will alter
she will alter
we will alter
they will alter
Future perfect
I will have altered
you will have altered
she will have altered
we will have altered
they will have altered

Imperative

Present
alter!
let's alter!
 
 
 

Conditional

Present
I would alter
you would alter
she would alter
we would alter
they would alter
Perfect
I would have altered
you would have altered
she would have altered
we would have altered
they would have altered

Conjunctive

Present
I alter
you alter
she alter
we alter
they alter
Perfect
I have altered
you have altered
she have altered
we have altered
they have altered
Past
 
I altered
you altered
she altered
we altered
they altered
Pluperfect
 
I had altered
you had altered
she had altered
we had altered
they had altered

Participle

Gerund
altering
Past
altered