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 couldn't vulcanise
you couldn't vulcanise
he couldn't vulcanise
we couldn't vulcanise
you couldn't vulcanise
they couldn't vulcanise

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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