could strum
Verbe régulier : strum - strummed- strummed
Traduction française : gratter sur - gratter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could strum
you could strum
he could strum
we could strum
you could strum
they could strum 	I could be strumming
you could be strumming
he could be strumming
we could be strumming
you could be strumming
they could be strumming	I could have strummed
you could have strummed
he could have strummed
we could have strummed
you could have strummed
they could have strummed	I could have been strumming
you could have been strumming
he could have been strumming
we could have been strumming
you could have been strumming
they could have been strumming	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't strum
you couldn't strum
he couldn't strum
we couldn't strum
you couldn't strum
they couldn't strum 	I couldn't be strumming
you couldn't be strumming
he couldn't be strumming
we couldn't be strumming
you couldn't be strumming
they couldn't be strumming	I couldn't have strummed
you couldn't have strummed
he couldn't have strummed
we couldn't have strummed
you couldn't have strummed
they couldn't have strummed	I couldn't have been strumming
you couldn't have been strumming
he couldn't have been strumming
we couldn't have been strumming
you couldn't have been strumming
they couldn't have been strumming	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I strum?
could you strum?
could he strum?
could we strum?
could you strum?
could they strum? 	could I be strumming?
could you be strumming?
could he be strumming?
could we be strumming?
could you be strumming?
could they be strumming? 	could I have strummed?
could you have strummed?
could he have strummed?
could we have strummed?
could you have strummed?
could they have strummed? 	could I have been strumming?
could you have been strumming?
could he have been strumming?
could we have been strumming?
could you have been strumming?
could they have been strumming? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I strum?
couldn't you strum?
couldn't he strum?
couldn't we strum?
couldn't you strum?
couldn't they strum? 	couldn't I be strumming?
couldn't you be strumming?
couldn't he be strumming?
couldn't we be strumming?
couldn't you be strumming?
couldn't they be strumming? 	couldn't I have strummed?
couldn't you have strummed?
couldn't he have strummed?
couldn't we have strummed?
couldn't you have strummed?
couldn't they have strummed? 	couldn't I have been strumming?
couldn't you have been strumming?
couldn't he have been strumming?
couldn't we have been strumming?
couldn't you have been strumming?
couldn't they have been strumming?