English verb conjugation COULD FLICKER

Regular verb: flicker - flickered - flickered

Affirmation

Simple form

I could flicker
you could flicker
he could flicker
we could flicker
you could flicker
they could flicker

V-ing form

I could be flickering
you could be flickering
he could be flickering
we could be flickering
you could be flickering
they could be flickering

Perfect

I could have flickered
you could have flickered
he could have flickered
we could have flickered
you could have flickered
they could have flickered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I flicker?
could you flicker?
could he flicker?
could we flicker?
could you flicker?
could they flicker?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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