English verb conjugation COULD FLASH

Regular verb: flash - flashed - flashed

Affirmation

Simple form

I could flash
you could flash
he could flash
we could flash
you could flash
they could flash

V-ing form

I could be flashing
you could be flashing
he could be flashing
we could be flashing
you could be flashing
they could be flashing

Perfect

I could have flashed
you could have flashed
he could have flashed
we could have flashed
you could have flashed
they could have flashed

V-ing perfect

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

Negation

Simple form

I could not flash
you could not flash
he could not flash
we could not flash
you could not flash
they could not flash

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I flash?
could you flash?
could he flash?
could we flash?
could you flash?
could they flash?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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