English verb conjugation
MUST IMPORT

Regular verb: import - imported - imported

Affirmation

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

Negation

Simple form	V-ing form
I mustn't import you mustn't import he mustn't import we mustn't import you mustn't import they mustn't import	I mustn't be importing you mustn't be importing he mustn't be importing we mustn't be importing you mustn't be importing they mustn't be importing
Perfect	V-ing perfect
I mustn't have imported you mustn't have imported he mustn't have imported we mustn't have imported you mustn't have imported they mustn't have imported	I mustn't have been importing you mustn't have been importing he mustn't have been importing we mustn't have been importing you mustn't have been importing they mustn't have been importing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
mustn't I import? mustn't you import? mustn't he import? mustn't we import? mustn't you import? mustn't they import?	mustn't I be importing? mustn't you be importing? mustn't he be importing? mustn't we be importing? mustn't you be importing? mustn't they be importing?
Perfect	V-ing perfect
mustn't I have imported? mustn't you have imported? mustn't he have imported? mustn't we have imported? mustn't you have imported? mustn't they have imported?	mustn't I have been importing? mustn't you have been importing? mustn't he have been importing? mustn't we have been importing? mustn't you have been importing? mustn't they have been importing?