I must import you must import she must import we must import you must import they must import
V-ing form
I must be importing you must be importing she must be importing we must be importing you must be importing they must be importing
Perfect
I must have imported you must have imported she must have imported we must have imported you must have imported they must have imported
V-ing perfect
I must have been importing you must have been importing she must have been importing we must have been importing you must have been importing they must have been importing
Negation
Simple form
I must not import you must not import she must not import we must not import you must not import they must not import
V-ing form
I must not be importing you must not be importing she must not be importing we must not be importing you must not be importing they must not be importing
Perfect
I must not have imported you must not have imported she must not have imported we must not have imported you must not have imported they must not have imported
V-ing perfect
I must not have been importing you must not have been importing she must not have been importing we must not have been importing you must not have been importing they must not have been importing
Interrogative form
Simple form
must I import? must you import? must she import? must we import? must you import? must they import?
V-ing form
must I be importing? must you be importing? must she be importing? must we be importing? must you be importing? must they be importing?
Perfect
must I have imported? must you have imported? must she have imported? must we have imported? must you have imported? must they have imported?
V-ing perfect
must I have been importing? must you have been importing? must she have been importing? must we have been importing? must you have been importing? must they have been importing?
Interro-negative form
Simple form
must I not import? must you not import? must she not import? must we not import? must you not import? must they not import?
V-ing form
must I not be importing? must you not be importing? must she not be importing? must we not be importing? must you not be importing? must they not be importing?
Perfect
must I not have imported? must you not have imported? must she not have imported? must we not have imported? must you not have imported? must they not have imported?
V-ing perfect
must I not have been importing? must you not have been importing? must she not have been importing? must we not have been importing? must you not have been importing? must they not have been importing?