English verb conjugation COULD VULCANISE

Regular verb: vulcanise - vulcanised - vulcanised

Affirmation

Simple form

I could vulcanise
you could vulcanise
he could vulcanise
we could vulcanise
you could vulcanise
they could vulcanise

V-ing form

I could be vulcanising
you could be vulcanising
he could be vulcanising
we could be vulcanising
you could be vulcanising
they could be vulcanising

Perfect

I could have vulcanised
you could have vulcanised
he could have vulcanised
we could have vulcanised
you could have vulcanised
they could have vulcanised

V-ing perfect

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

Negation

Simple form

I could not vulcanise
you could not vulcanise
he could not vulcanise
we could not vulcanise
you could not vulcanise
they could not vulcanise

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I vulcanise?
could you vulcanise?
could he vulcanise?
could we vulcanise?
could you vulcanise?
could they vulcanise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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