English verb conjugation COULD SULFURISE

Regular verb: sulfurise - sulfurised - sulfurised

Affirmation

Simple form

I could sulfurise
you could sulfurise
he could sulfurise
we could sulfurise
you could sulfurise
they could sulfurise

V-ing form

I could be sulfurising
you could be sulfurising
he could be sulfurising
we could be sulfurising
you could be sulfurising
they could be sulfurising

Perfect

I could have sulfurised
you could have sulfurised
he could have sulfurised
we could have sulfurised
you could have sulfurised
they could have sulfurised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sulfurise?
could you sulfurise?
could he sulfurise?
could we sulfurise?
could you sulfurise?
could they sulfurise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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