English verb conjugation SHOULD STIFF

Regular verb: stiff - stiffed - stiffed

Affirmation

Simple form

I should stiff
you should stiff
he should stiff
we should stiff
you should stiff
they should stiff

V-ing form

I should be stiffing
you should be stiffing
he should be stiffing
we should be stiffing
you should be stiffing
they should be stiffing

Perfect

I should have stiffed
you should have stiffed
he should have stiffed
we should have stiffed
you should have stiffed
they should have stiffed

V-ing perfect

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

Negation

Simple form

I should not stiff
you should not stiff
he should not stiff
we should not stiff
you should not stiff
they should not stiff

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

should I stiff?
should you stiff?
should he stiff?
should we stiff?
should you stiff?
should they stiff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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