Conjugations of the English verb fail can be found below. Click the translation icon Translation button to translate each conjugation. Improve your vocabulary and boost your learning by taking the above online verb test.
 

Indicative

Present
T
I fail (fam.)
you fail (fam.)
she fails (fam.)
we fail (fam.)
they fail (fam.)
Perfect
T
I have failed (fam.)
you have failed (fam.)
she has failed (fam.)
we have failed (fam.)
they have failed (fam.)
Past
I failed (fam.)
you failed (fam.)
she failed (fam.)
we failed (fam.)
they failed (fam.)
Pluperfect
I had failed (fam.)
you had failed (fam.)
she had failed (fam.)
we had failed (fam.)
they had failed (fam.)
Future
I will fail (fam.)
you will fail (fam.)
she will fail (fam.)
we will fail (fam.)
they will fail (fam.)
Future perfect
I will have failed (fam.)
you will have failed (fam.)
she will have failed (fam.)
we will have failed (fam.)
they will have failed (fam.)

Imperative

Present
fail (fam.)!
let's fail (fam.)!
 
 
 

Conditional

Present
I would fail (fam.)
you would fail (fam.)
she would fail (fam.)
we would fail (fam.)
they would fail (fam.)
Perfect
I would have failed (fam.)
you would have failed (fam.)
she would have failed (fam.)
we would have failed (fam.)
they would have failed (fam.)

Conjunctive

Present
I fail (fam.)
you fail (fam.)
she fail (fam.)
we fail (fam.)
they fail (fam.)
Perfect
I have failed (fam.)
you have failed (fam.)
she have failed (fam.)
we have failed (fam.)
they have failed (fam.)
Past
 
I failed (fam.)
you failed (fam.)
she failed (fam.)
we failed (fam.)
they failed (fam.)
Pluperfect
 
I had failed (fam.)
you had failed (fam.)
she had failed (fam.)
we had failed (fam.)
they had failed (fam.)

Participle

Gerund
failing (fam.)
Past
failed (fam.)