English verb conjugation COULD SIBILATE

Regular verb: sibilate - sibilated - sibilated

Affirmation

Simple form

I could sibilate
you could sibilate
he could sibilate
we could sibilate
you could sibilate
they could sibilate

V-ing form

I could be sibilating
you could be sibilating
he could be sibilating
we could be sibilating
you could be sibilating
they could be sibilating

Perfect

I could have sibilated
you could have sibilated
he 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
he 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
he 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
he 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
he 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
he 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 he sibilate?
could we sibilate?
could you sibilate?
could they sibilate?

V-ing form

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

Perfect

could I have sibilated?
could you have sibilated?
could he 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 he 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 he 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 he 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 he 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 he 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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