English verb conjugation
COULD BANG

Regular verb: bang - banged - banged

Affirmation

Simple form	V-ing form
I could bang you could bang he could bang we could bang you could bang they could bang	I could be banging you could be banging he could be banging we could be banging you could be banging they could be banging
Perfect	V-ing perfect
I could have banged you could have banged he could have banged we could have banged you could have banged they could have banged	I could have been banging you could have been banging he could have been banging we could have been banging you could have been banging they could have been banging

Negation

Simple form	V-ing form
I could not bang you could not bang he could not bang we could not bang you could not bang they could not bang	I could not be banging you could not be banging he could not be banging we could not be banging you could not be banging they could not be banging
Perfect	V-ing perfect
I could not have banged you could not have banged he could not have banged we could not have banged you could not have banged they could not have banged	I could not have been banging you could not have been banging he could not have been banging we could not have been banging you could not have been banging they could not have been banging

Interrogative form

Simple form	V-ing form
could I bang? could you bang? could he bang? could we bang? could you bang? could they bang?	could I be banging? could you be banging? could he be banging? could we be banging? could you be banging? could they be banging?
Perfect	V-ing perfect
could I have banged? could you have banged? could he have banged? could we have banged? could you have banged? could they have banged?	could I have been banging? could you have been banging? could he have been banging? could we have been banging? could you have been banging? could they have been banging?

Interro-negative form

Simple form	V-ing form
could I not bang? could you not bang? could he not bang? could we not bang? could you not bang? could they not bang?	could I not be banging? could you not be banging? could he not be banging? could we not be banging? could you not be banging? could they not be banging?
Perfect	V-ing perfect
could I not have banged? could you not have banged? could he not have banged? could we not have banged? could you not have banged? could they not have banged?	could I not have been banging? could you not have been banging? could he not have been banging? could we not have been banging? could you not have been banging? could they not have been banging?