English verb conjugation COULD CRASH

Regular verb: crash - crashed - crashed

Affirmation

Simple form

I could crash
you could crash
he could crash
we could crash
you could crash
they could crash

V-ing form

I could be crashing
you could be crashing
he could be crashing
we could be crashing
you could be crashing
they could be crashing

Perfect

I could have crashed
you could have crashed
he could have crashed
we could have crashed
you could have crashed
they could have crashed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I crash?
could you crash?
could he crash?
could we crash?
could you crash?
could they crash?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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