English verb conjugation COULD CLUSTER

Regular verb: cluster - clustered - clustered

Affirmation

Simple form

I could cluster
you could cluster
he could cluster
we could cluster
you could cluster
they could cluster

V-ing form

I could be clustering
you could be clustering
he could be clustering
we could be clustering
you could be clustering
they could be clustering

Perfect

I could have clustered
you could have clustered
he could have clustered
we could have clustered
you could have clustered
they could have clustered

V-ing perfect

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

Negation

Simple form

I could not cluster
you could not cluster
he could not cluster
we could not cluster
you could not cluster
they could not cluster

V-ing form

I could not be clustering
you could not be clustering
he could not be clustering
we could not be clustering
you could not be clustering
they could not be clustering

Perfect

I could not have clustered
you could not have clustered
he could not have clustered
we could not have clustered
you could not have clustered
they could not have clustered

V-ing perfect

I could not have been clustering
you could not have been clustering
he could not have been clustering
we could not have been clustering
you could not have been clustering
they could not have been clustering

Interrogative form

Simple form

could I cluster?
could you cluster?
could he cluster?
could we cluster?
could you cluster?
could they cluster?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not cluster?
could you not cluster?
could he not cluster?
could we not cluster?
could you not cluster?
could they not cluster?

V-ing form

could I not be clustering?
could you not be clustering?
could he not be clustering?
could we not be clustering?
could you not be clustering?
could they not be clustering?

Perfect

could I not have clustered?
could you not have clustered?
could he not have clustered?
could we not have clustered?
could you not have clustered?
could they not have clustered?

V-ing perfect

could I not have been clustering?
could you not have been clustering?
could he not have been clustering?
could we not have been clustering?
could you not have been clustering?
could they not have been clustering?

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