English verb conjugation
COULD ROCKET

Regular verb: rocket - rocketed - rocketed

Affirmation

Simple form	V-ing form
I could rocket you could rocket he could rocket we could rocket you could rocket they could rocket	I could be rocketing you could be rocketing he could be rocketing we could be rocketing you could be rocketing they could be rocketing
Perfect	V-ing perfect
I could have rocketed you could have rocketed he could have rocketed we could have rocketed you could have rocketed they could have rocketed	I could have been rocketing you could have been rocketing he could have been rocketing we could have been rocketing you could have been rocketing they could have been rocketing

Negation

Simple form	V-ing form
I could not rocket you could not rocket he could not rocket we could not rocket you could not rocket they could not rocket	I could not be rocketing you could not be rocketing he could not be rocketing we could not be rocketing you could not be rocketing they could not be rocketing
Perfect	V-ing perfect
I could not have rocketed you could not have rocketed he could not have rocketed we could not have rocketed you could not have rocketed they could not have rocketed	I could not have been rocketing you could not have been rocketing he could not have been rocketing we could not have been rocketing you could not have been rocketing they could not have been rocketing

Interrogative form

Simple form	V-ing form
could I rocket? could you rocket? could he rocket? could we rocket? could you rocket? could they rocket?	could I be rocketing? could you be rocketing? could he be rocketing? could we be rocketing? could you be rocketing? could they be rocketing?
Perfect	V-ing perfect
could I have rocketed? could you have rocketed? could he have rocketed? could we have rocketed? could you have rocketed? could they have rocketed?	could I have been rocketing? could you have been rocketing? could he have been rocketing? could we have been rocketing? could you have been rocketing? could they have been rocketing?

Interro-negative form

Simple form	V-ing form
could I not rocket? could you not rocket? could he not rocket? could we not rocket? could you not rocket? could they not rocket?	could I not be rocketing? could you not be rocketing? could he not be rocketing? could we not be rocketing? could you not be rocketing? could they not be rocketing?
Perfect	V-ing perfect
could I not have rocketed? could you not have rocketed? could he not have rocketed? could we not have rocketed? could you not have rocketed? could they not have rocketed?	could I not have been rocketing? could you not have been rocketing? could he not have been rocketing? could we not have been rocketing? could you not have been rocketing? could they not have been rocketing?