English verb conjugation
COULD IMPORT

Regular verb: import - imported - imported

Affirmation

Simple form	V-ing form
I could import you could import he could import we could import you could import they could import	I could be importing you could be importing he could be importing we could be importing you could be importing they could be importing
Perfect	V-ing perfect
I could have imported you could have imported he could have imported we could have imported you could have imported they could have imported	I could have been importing you could have been importing he could have been importing we could have been importing you could have been importing they could have been importing

Negation

Simple form	V-ing form
I could not import you could not import he could not import we could not import you could not import they could not import	I could not be importing you could not be importing he could not be importing we could not be importing you could not be importing they could not be importing
Perfect	V-ing perfect
I could not have imported you could not have imported he could not have imported we could not have imported you could not have imported they could not have imported	I could not have been importing you could not have been importing he could not have been importing we could not have been importing you could not have been importing they could not have been importing

Interrogative form

Simple form	V-ing form
could I import? could you import? could he import? could we import? could you import? could they import?	could I be importing? could you be importing? could he be importing? could we be importing? could you be importing? could they be importing?
Perfect	V-ing perfect
could I have imported? could you have imported? could he have imported? could we have imported? could you have imported? could they have imported?	could I have been importing? could you have been importing? could he have been importing? could we have been importing? could you have been importing? could they have been importing?

Interro-negative form

Simple form	V-ing form
could I not import? could you not import? could he not import? could we not import? could you not import? could they not import?	could I not be importing? could you not be importing? could he not be importing? could we not be importing? could you not be importing? could they not be importing?
Perfect	V-ing perfect
could I not have imported? could you not have imported? could he not have imported? could we not have imported? could you not have imported? could they not have imported?	could I not have been importing? could you not have been importing? could he not have been importing? could we not have been importing? could you not have been importing? could they not have been importing?