English verb conjugation COULD SHEAF

Regular verb: sheaf - sheafed - sheafed

Affirmation

Simple form

I could sheaf
you could sheaf
he could sheaf
we could sheaf
you could sheaf
they could sheaf

V-ing form

I could be sheafing
you could be sheafing
he could be sheafing
we could be sheafing
you could be sheafing
they could be sheafing

Perfect

I could have sheafed
you could have sheafed
he could have sheafed
we could have sheafed
you could have sheafed
they could have sheafed

V-ing perfect

I could have been sheafing
you could have been sheafing
he could have been sheafing
we could have been sheafing
you could have been sheafing
they could have been sheafing

Negation

Simple form

I couldn't sheaf
you couldn't sheaf
he couldn't sheaf
we couldn't sheaf
you couldn't sheaf
they couldn't sheaf

V-ing form

I couldn't be sheafing
you couldn't be sheafing
he couldn't be sheafing
we couldn't be sheafing
you couldn't be sheafing
they couldn't be sheafing

Perfect

I couldn't have sheafed
you couldn't have sheafed
he couldn't have sheafed
we couldn't have sheafed
you couldn't have sheafed
they couldn't have sheafed

V-ing perfect

I couldn't have been sheafing
you couldn't have been sheafing
he couldn't have been sheafing
we couldn't have been sheafing
you couldn't have been sheafing
they couldn't have been sheafing

Interrogative form

Simple form

could I sheaf?
could you sheaf?
could he sheaf?
could we sheaf?
could you sheaf?
could they sheaf?

V-ing form

could I be sheafing?
could you be sheafing?
could he be sheafing?
could we be sheafing?
could you be sheafing?
could they be sheafing?

Perfect

could I have sheafed?
could you have sheafed?
could he have sheafed?
could we have sheafed?
could you have sheafed?
could they have sheafed?

V-ing perfect

could I have been sheafing?
could you have been sheafing?
could he have been sheafing?
could we have been sheafing?
could you have been sheafing?
could they have been sheafing?

Interro-negative form

Simple form

couldn't I sheaf?
couldn't you sheaf?
couldn't he sheaf?
couldn't we sheaf?
couldn't you sheaf?
couldn't they sheaf?

V-ing form

couldn't I be sheafing?
couldn't you be sheafing?
couldn't he be sheafing?
couldn't we be sheafing?
couldn't you be sheafing?
couldn't they be sheafing?

Perfect

couldn't I have sheafed?
couldn't you have sheafed?
couldn't he have sheafed?
couldn't we have sheafed?
couldn't you have sheafed?
couldn't they have sheafed?

V-ing perfect

couldn't I have been sheafing?
couldn't you have been sheafing?
couldn't he have been sheafing?
couldn't we have been sheafing?
couldn't you have been sheafing?
couldn't they have been sheafing?

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