I must relapse you must relapse she must relapse we must relapse you must relapse they must relapse
V-ing form
I must be relapsing you must be relapsing she must be relapsing we must be relapsing you must be relapsing they must be relapsing
Perfect
I must have relapsed you must have relapsed she must have relapsed we must have relapsed you must have relapsed they must have relapsed
V-ing perfect
I must have been relapsing you must have been relapsing she must have been relapsing we must have been relapsing you must have been relapsing they must have been relapsing
Negation
Simple form
I must not relapse you must not relapse she must not relapse we must not relapse you must not relapse they must not relapse
V-ing form
I must not be relapsing you must not be relapsing she must not be relapsing we must not be relapsing you must not be relapsing they must not be relapsing
Perfect
I must not have relapsed you must not have relapsed she must not have relapsed we must not have relapsed you must not have relapsed they must not have relapsed
V-ing perfect
I must not have been relapsing you must not have been relapsing she must not have been relapsing we must not have been relapsing you must not have been relapsing they must not have been relapsing
Interrogative form
Simple form
must I relapse? must you relapse? must she relapse? must we relapse? must you relapse? must they relapse?
V-ing form
must I be relapsing? must you be relapsing? must she be relapsing? must we be relapsing? must you be relapsing? must they be relapsing?
Perfect
must I have relapsed? must you have relapsed? must she have relapsed? must we have relapsed? must you have relapsed? must they have relapsed?
V-ing perfect
must I have been relapsing? must you have been relapsing? must she have been relapsing? must we have been relapsing? must you have been relapsing? must they have been relapsing?
Interro-negative form
Simple form
must I not relapse? must you not relapse? must she not relapse? must we not relapse? must you not relapse? must they not relapse?
V-ing form
must I not be relapsing? must you not be relapsing? must she not be relapsing? must we not be relapsing? must you not be relapsing? must they not be relapsing?
Perfect
must I not have relapsed? must you not have relapsed? must she not have relapsed? must we not have relapsed? must you not have relapsed? must they not have relapsed?
V-ing perfect
must I not have been relapsing? must you not have been relapsing? must she not have been relapsing? must we not have been relapsing? must you not have been relapsing? must they not have been relapsing?