I must acquire you must acquire she must acquire we must acquire you must acquire they must acquire
V-ing form
I must be acquiring you must be acquiring she must be acquiring we must be acquiring you must be acquiring they must be acquiring
Perfect
I must have acquired you must have acquired she must have acquired we must have acquired you must have acquired they must have acquired
V-ing perfect
I must have been acquiring you must have been acquiring she must have been acquiring we must have been acquiring you must have been acquiring they must have been acquiring
Negation
Simple form
I must not acquire you must not acquire she must not acquire we must not acquire you must not acquire they must not acquire
V-ing form
I must not be acquiring you must not be acquiring she must not be acquiring we must not be acquiring you must not be acquiring they must not be acquiring
Perfect
I must not have acquired you must not have acquired she must not have acquired we must not have acquired you must not have acquired they must not have acquired
V-ing perfect
I must not have been acquiring you must not have been acquiring she must not have been acquiring we must not have been acquiring you must not have been acquiring they must not have been acquiring
Interrogative form
Simple form
must I acquire? must you acquire? must she acquire? must we acquire? must you acquire? must they acquire?
V-ing form
must I be acquiring? must you be acquiring? must she be acquiring? must we be acquiring? must you be acquiring? must they be acquiring?
Perfect
must I have acquired? must you have acquired? must she have acquired? must we have acquired? must you have acquired? must they have acquired?
V-ing perfect
must I have been acquiring? must you have been acquiring? must she have been acquiring? must we have been acquiring? must you have been acquiring? must they have been acquiring?
Interro-negative form
Simple form
must I not acquire? must you not acquire? must she not acquire? must we not acquire? must you not acquire? must they not acquire?
V-ing form
must I not be acquiring? must you not be acquiring? must she not be acquiring? must we not be acquiring? must you not be acquiring? must they not be acquiring?
Perfect
must I not have acquired? must you not have acquired? must she not have acquired? must we not have acquired? must you not have acquired? must they not have acquired?
V-ing perfect
must I not have been acquiring? must you not have been acquiring? must she not have been acquiring? must we not have been acquiring? must you not have been acquiring? must they not have been acquiring?