English verb conjugation COULD SIBILATE

Regular verb: sibilate - sibilated - sibilated

Affirmation

Simple form

I could sibilate
you could sibilate
she could sibilate
we could sibilate
you could sibilate
they could sibilate

V-ing form

I could be sibilating
you could be sibilating
she could be sibilating
we could be sibilating
you could be sibilating
they could be sibilating

Perfect

I could have sibilated
you could have sibilated
she could have sibilated
we could have sibilated
you could have sibilated
they could have sibilated

V-ing perfect

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

Negation

Simple form

I couldn't sibilate
you couldn't sibilate
she couldn't sibilate
we couldn't sibilate
you couldn't sibilate
they couldn't sibilate

V-ing form

I couldn't be sibilating
you couldn't be sibilating
she couldn't be sibilating
we couldn't be sibilating
you couldn't be sibilating
they couldn't be sibilating

Perfect

I couldn't have sibilated
you couldn't have sibilated
she couldn't have sibilated
we couldn't have sibilated
you couldn't have sibilated
they couldn't have sibilated

V-ing perfect

I couldn't have been sibilating
you couldn't have been sibilating
she couldn't have been sibilating
we couldn't have been sibilating
you couldn't have been sibilating
they couldn't have been sibilating

Interrogative form

Simple form

could I sibilate?
could you sibilate?
could she sibilate?
could we sibilate?
could you sibilate?
could they sibilate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I sibilate?
couldn't you sibilate?
couldn't she sibilate?
couldn't we sibilate?
couldn't you sibilate?
couldn't they sibilate?

V-ing form

couldn't I be sibilating?
couldn't you be sibilating?
couldn't she be sibilating?
couldn't we be sibilating?
couldn't you be sibilating?
couldn't they be sibilating?

Perfect

couldn't I have sibilated?
couldn't you have sibilated?
couldn't she have sibilated?
couldn't we have sibilated?
couldn't you have sibilated?
couldn't they have sibilated?

V-ing perfect

couldn't I have been sibilating?
couldn't you have been sibilating?
couldn't she have been sibilating?
couldn't we have been sibilating?
couldn't you have been sibilating?
couldn't they have been sibilating?

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