English verb conjugation
COULD INTERPRET

Regular verb: interpret - interpreted - interpreted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?