English verb conjugation COULD GAS

Regular verb: gas - gassed - gassed

Affirmation

Simple form

I could gas
you could gas
he could gas
we could gas
you could gas
they could gas

V-ing form

I could be gassing
you could be gassing
he could be gassing
we could be gassing
you could be gassing
they could be gassing

Perfect

I could have gassed
you could have gassed
he could have gassed
we could have gassed
you could have gassed
they could have gassed

V-ing perfect

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

Negation

Simple form

I could not gas
you could not gas
he could not gas
we could not gas
you could not gas
they could not gas

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I gas?
could you gas?
could he gas?
could we gas?
could you gas?
could they gas?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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