English verb conjugation COULD INTERFERE

Regular verb: interfere - interfered - interfered

Affirmation

Simple form

I could interfere
you could interfere
he could interfere
we could interfere
you could interfere
they could interfere

V-ing form

I could be interfering
you could be interfering
he could be interfering
we could be interfering
you could be interfering
they could be interfering

Perfect

I could have interfered
you could have interfered
he could have interfered
we could have interfered
you could have interfered
they could have interfered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I interfere?
could you interfere?
could he interfere?
could we interfere?
could you interfere?
could they interfere?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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