English verb conjugation COULD SINK

Irregular verb: sink - sank, sunk - sunk

Affirmation

Simple form

I could sink
you could sink
she could sink
we could sink
you could sink
they could sink

V-ing form

I could be sinking
you could be sinking
she could be sinking
we could be sinking
you could be sinking
they could be sinking

Perfect

I could have sunk
you could have sunk
she could have sunk
we could have sunk
you could have sunk
they could have sunk

V-ing perfect

I could have been sinking
you could have been sinking
she could have been sinking
we could have been sinking
you could have been sinking
they could have been sinking

Negation

Simple form

I could not sink
you could not sink
she could not sink
we could not sink
you could not sink
they could not sink

V-ing form

I could not be sinking
you could not be sinking
she could not be sinking
we could not be sinking
you could not be sinking
they could not be sinking

Perfect

I could not have sunk
you could not have sunk
she could not have sunk
we could not have sunk
you could not have sunk
they could not have sunk

V-ing perfect

I could not have been sinking
you could not have been sinking
she could not have been sinking
we could not have been sinking
you could not have been sinking
they could not have been sinking

Interrogative form

Simple form

could I sink?
could you sink?
could she sink?
could we sink?
could you sink?
could they sink?

V-ing form

could I be sinking?
could you be sinking?
could she be sinking?
could we be sinking?
could you be sinking?
could they be sinking?

Perfect

could I have sunk?
could you have sunk?
could she have sunk?
could we have sunk?
could you have sunk?
could they have sunk?

V-ing perfect

could I have been sinking?
could you have been sinking?
could she have been sinking?
could we have been sinking?
could you have been sinking?
could they have been sinking?

Interro-negative form

Simple form

could I not sink?
could you not sink?
could she not sink?
could we not sink?
could you not sink?
could they not sink?

V-ing form

could I not be sinking?
could you not be sinking?
could she not be sinking?
could we not be sinking?
could you not be sinking?
could they not be sinking?

Perfect

could I not have sunk?
could you not have sunk?
could she not have sunk?
could we not have sunk?
could you not have sunk?
could they not have sunk?

V-ing perfect

could I not have been sinking?
could you not have been sinking?
could she not have been sinking?
could we not have been sinking?
could you not have been sinking?
could they not have been sinking?

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