English verb conjugation COULD PREBOIL

Regular verb: preboil - preboiled - preboiled

Affirmation

Simple form

I could preboil
you could preboil
she could preboil
we could preboil
you could preboil
they could preboil

V-ing form

I could be preboiling
you could be preboiling
she could be preboiling
we could be preboiling
you could be preboiling
they could be preboiling

Perfect

I could have preboiled
you could have preboiled
she could have preboiled
we could have preboiled
you could have preboiled
they could have preboiled

V-ing perfect

I could have been preboiling
you could have been preboiling
she could have been preboiling
we could have been preboiling
you could have been preboiling
they could have been preboiling

Negation

Simple form

I could not preboil
you could not preboil
she could not preboil
we could not preboil
you could not preboil
they could not preboil

V-ing form

I could not be preboiling
you could not be preboiling
she could not be preboiling
we could not be preboiling
you could not be preboiling
they could not be preboiling

Perfect

I could not have preboiled
you could not have preboiled
she could not have preboiled
we could not have preboiled
you could not have preboiled
they could not have preboiled

V-ing perfect

I could not have been preboiling
you could not have been preboiling
she could not have been preboiling
we could not have been preboiling
you could not have been preboiling
they could not have been preboiling

Interrogative form

Simple form

could I preboil?
could you preboil?
could she preboil?
could we preboil?
could you preboil?
could they preboil?

V-ing form

could I be preboiling?
could you be preboiling?
could she be preboiling?
could we be preboiling?
could you be preboiling?
could they be preboiling?

Perfect

could I have preboiled?
could you have preboiled?
could she have preboiled?
could we have preboiled?
could you have preboiled?
could they have preboiled?

V-ing perfect

could I have been preboiling?
could you have been preboiling?
could she have been preboiling?
could we have been preboiling?
could you have been preboiling?
could they have been preboiling?

Interro-negative form

Simple form

could I not preboil?
could you not preboil?
could she not preboil?
could we not preboil?
could you not preboil?
could they not preboil?

V-ing form

could I not be preboiling?
could you not be preboiling?
could she not be preboiling?
could we not be preboiling?
could you not be preboiling?
could they not be preboiling?

Perfect

could I not have preboiled?
could you not have preboiled?
could she not have preboiled?
could we not have preboiled?
could you not have preboiled?
could they not have preboiled?

V-ing perfect

could I not have been preboiling?
could you not have been preboiling?
could she not have been preboiling?
could we not have been preboiling?
could you not have been preboiling?
could they not have been preboiling?

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