could storm
Regular verb: storm - stormed- stormed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could storm
you could storm
he could storm
we could storm
you could storm
they could storm 	I could be storming
you could be storming
he could be storming
we could be storming
you could be storming
they could be storming	I could have stormed
you could have stormed
he could have stormed
we could have stormed
you could have stormed
they could have stormed	I could have been storming
you could have been storming
he could have been storming
we could have been storming
you could have been storming
they could have been storming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not storm
you could not storm
he could not storm
we could not storm
you could not storm
they could not storm 	I could not be storming
you could not be storming
he could not be storming
we could not be storming
you could not be storming
they could not be storming	I could not have stormed
you could not have stormed
he could not have stormed
we could not have stormed
you could not have stormed
they could not have stormed	I could not have been storming
you could not have been storming
he could not have been storming
we could not have been storming
you could not have been storming
they could not have been storming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I storm?
could you storm?
could he storm?
could we storm?
could you storm?
could they storm? 	could I be storming?
could you be storming?
could he be storming?
could we be storming?
could you be storming?
could they be storming? 	could I have stormed?
could you have stormed?
could he have stormed?
could we have stormed?
could you have stormed?
could they have stormed? 	could I have been storming?
could you have been storming?
could he have been storming?
could we have been storming?
could you have been storming?
could they have been storming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not storm?
could you not storm?
could he not storm?
could we not storm?
could you not storm?
could they not storm? 	could I not be storming?
could you not be storming?
could he not be storming?
could we not be storming?
could you not be storming?
could they not be storming? 	could I not have stormed?
could you not have stormed?
could he not have stormed?
could we not have stormed?
could you not have stormed?
could they not have stormed? 	could I not have been storming?
could you not have been storming?
could he not have been storming?
could we not have been storming?
could you not have been storming?
could they not have been storming?