English verb conjugation COULD DISAPPEAR

Regular verb: disappear - disappeared - disappeared

Affirmation

Simple form

I could disappear
you could disappear
he could disappear
we could disappear
you could disappear
they could disappear

V-ing form

I could be disappearing
you could be disappearing
he could be disappearing
we could be disappearing
you could be disappearing
they could be disappearing

Perfect

I could have disappeared
you could have disappeared
he could have disappeared
we could have disappeared
you could have disappeared
they could have disappeared

V-ing perfect

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

Negation

Simple form

I could not disappear
you could not disappear
he could not disappear
we could not disappear
you could not disappear
they could not disappear

V-ing form

I could not be disappearing
you could not be disappearing
he could not be disappearing
we could not be disappearing
you could not be disappearing
they could not be disappearing

Perfect

I could not have disappeared
you could not have disappeared
he could not have disappeared
we could not have disappeared
you could not have disappeared
they could not have disappeared

V-ing perfect

I could not have been disappearing
you could not have been disappearing
he could not have been disappearing
we could not have been disappearing
you could not have been disappearing
they could not have been disappearing

Interrogative form

Simple form

could I disappear?
could you disappear?
could he disappear?
could we disappear?
could you disappear?
could they disappear?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not disappear?
could you not disappear?
could he not disappear?
could we not disappear?
could you not disappear?
could they not disappear?

V-ing form

could I not be disappearing?
could you not be disappearing?
could he not be disappearing?
could we not be disappearing?
could you not be disappearing?
could they not be disappearing?

Perfect

could I not have disappeared?
could you not have disappeared?
could he not have disappeared?
could we not have disappeared?
could you not have disappeared?
could they not have disappeared?

V-ing perfect

could I not have been disappearing?
could you not have been disappearing?
could he not have been disappearing?
could we not have been disappearing?
could you not have been disappearing?
could they not have been disappearing?

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