English verb conjugation COULD THROB

Regular verb: throb - throbbed - throbbed

Affirmation

Simple form

I could throb
you could throb
she could throb
we could throb
you could throb
they could throb

V-ing form

I could be throbbing
you could be throbbing
she could be throbbing
we could be throbbing
you could be throbbing
they could be throbbing

Perfect

I could have throbbed
you could have throbbed
she could have throbbed
we could have throbbed
you could have throbbed
they could have throbbed

V-ing perfect

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

Negation

Simple form

I could not throb
you could not throb
she could not throb
we could not throb
you could not throb
they could not throb

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I throb?
could you throb?
could she throb?
could we throb?
could you throb?
could they throb?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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