I must flit you must flit she must flit we must flit you must flit they must flit
V-ing form
I must be flitting you must be flitting she must be flitting we must be flitting you must be flitting they must be flitting
Perfect
I must have flitted you must have flitted she must have flitted we must have flitted you must have flitted they must have flitted
V-ing perfect
I must have been flitting you must have been flitting she must have been flitting we must have been flitting you must have been flitting they must have been flitting
Negation
Simple form
I must not flit you must not flit she must not flit we must not flit you must not flit they must not flit
V-ing form
I must not be flitting you must not be flitting she must not be flitting we must not be flitting you must not be flitting they must not be flitting
Perfect
I must not have flitted you must not have flitted she must not have flitted we must not have flitted you must not have flitted they must not have flitted
V-ing perfect
I must not have been flitting you must not have been flitting she must not have been flitting we must not have been flitting you must not have been flitting they must not have been flitting
Interrogative form
Simple form
must I flit? must you flit? must she flit? must we flit? must you flit? must they flit?
V-ing form
must I be flitting? must you be flitting? must she be flitting? must we be flitting? must you be flitting? must they be flitting?
Perfect
must I have flitted? must you have flitted? must she have flitted? must we have flitted? must you have flitted? must they have flitted?
V-ing perfect
must I have been flitting? must you have been flitting? must she have been flitting? must we have been flitting? must you have been flitting? must they have been flitting?
Interro-negative form
Simple form
must I not flit? must you not flit? must she not flit? must we not flit? must you not flit? must they not flit?
V-ing form
must I not be flitting? must you not be flitting? must she not be flitting? must we not be flitting? must you not be flitting? must they not be flitting?
Perfect
must I not have flitted? must you not have flitted? must she not have flitted? must we not have flitted? must you not have flitted? must they not have flitted?
V-ing perfect
must I not have been flitting? must you not have been flitting? must she not have been flitting? must we not have been flitting? must you not have been flitting? must they not have been flitting?