English verb conjugation SHOULD FAIL

Regular verb: fail - failed - failed

Affirmation

Simple form

I should fail
you should fail
he should fail
we should fail
you should fail
they should fail

V-ing form

I should be failing
you should be failing
he should be failing
we should be failing
you should be failing
they should be failing

Perfect

I should have failed
you should have failed
he should have failed
we should have failed
you should have failed
they should have failed

V-ing perfect

I should have been failing
you should have been failing
he should have been failing
we should have been failing
you should have been failing
they should have been failing

Negation

Simple form

I should not fail
you should not fail
he should not fail
we should not fail
you should not fail
they should not fail

V-ing form

I should not be failing
you should not be failing
he should not be failing
we should not be failing
you should not be failing
they should not be failing

Perfect

I should not have failed
you should not have failed
he should not have failed
we should not have failed
you should not have failed
they should not have failed

V-ing perfect

I should not have been failing
you should not have been failing
he should not have been failing
we should not have been failing
you should not have been failing
they should not have been failing

Interrogative form

Simple form

should I fail?
should you fail?
should he fail?
should we fail?
should you fail?
should they fail?

V-ing form

should I be failing?
should you be failing?
should he be failing?
should we be failing?
should you be failing?
should they be failing?

Perfect

should I have failed?
should you have failed?
should he have failed?
should we have failed?
should you have failed?
should they have failed?

V-ing perfect

should I have been failing?
should you have been failing?
should he have been failing?
should we have been failing?
should you have been failing?
should they have been failing?

Interro-negative form

Simple form

should I not fail?
should you not fail?
should he not fail?
should we not fail?
should you not fail?
should they not fail?

V-ing form

should I not be failing?
should you not be failing?
should he not be failing?
should we not be failing?
should you not be failing?
should they not be failing?

Perfect

should I not have failed?
should you not have failed?
should he not have failed?
should we not have failed?
should you not have failed?
should they not have failed?

V-ing perfect

should I not have been failing?
should you not have been failing?
should he not have been failing?
should we not have been failing?
should you not have been failing?
should they not have been failing?

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