could interpret
Regular verb: interpret - interpreted- interpreted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could interpret
you could interpret
she could interpret
we could interpret
you could interpret
they could interpret 	I could be interpreting
you could be interpreting
she could be interpreting
we could be interpreting
you could be interpreting
they could be interpreting	I could have interpreted
you could have interpreted
she could have interpreted
we could have interpreted
you could have interpreted
they could have interpreted	I could have been interpreting
you could have been interpreting
she could have been interpreting
we could have been interpreting
you could have been interpreting
they could have been interpreting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not interpret
you could not interpret
she could not interpret
we could not interpret
you could not interpret
they could not interpret 	I could not be interpreting
you could not be interpreting
she could not be interpreting
we could not be interpreting
you could not be interpreting
they could not be interpreting	I could not have interpreted
you could not have interpreted
she could not have interpreted
we could not have interpreted
you could not have interpreted
they could not have interpreted	I could not have been interpreting
you could not have been interpreting
she could not have been interpreting
we could not have been interpreting
you could not have been interpreting
they could not have been interpreting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I interpret?
could you interpret?
could she interpret?
could we interpret?
could you interpret?
could they interpret? 	could I be interpreting?
could you be interpreting?
could she be interpreting?
could we be interpreting?
could you be interpreting?
could they be interpreting? 	could I have interpreted?
could you have interpreted?
could she have interpreted?
could we have interpreted?
could you have interpreted?
could they have interpreted? 	could I have been interpreting?
could you have been interpreting?
could she have been interpreting?
could we have been interpreting?
could you have been interpreting?
could they have been interpreting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not interpret?
could you not interpret?
could she not interpret?
could we not interpret?
could you not interpret?
could they not interpret? 	could I not be interpreting?
could you not be interpreting?
could she not be interpreting?
could we not be interpreting?
could you not be interpreting?
could they not be interpreting? 	could I not have interpreted?
could you not have interpreted?
could she not have interpreted?
could we not have interpreted?
could you not have interpreted?
could they not have interpreted? 	could I not have been interpreting?
could you not have been interpreting?
could she not have been interpreting?
could we not have been interpreting?
could you not have been interpreting?
could they not have been interpreting?