must remember
Regular verb: remember - remembered- remembered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must remember
you must remember
she must remember
we must remember
you must remember
they must remember 	I must be remembering
you must be remembering
she must be remembering
we must be remembering
you must be remembering
they must be remembering	I must have remembered
you must have remembered
she must have remembered
we must have remembered
you must have remembered
they must have remembered	I must have been remembering
you must have been remembering
she must have been remembering
we must have been remembering
you must have been remembering
they must have been remembering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not remember
you must not remember
she must not remember
we must not remember
you must not remember
they must not remember 	I must not be remembering
you must not be remembering
she must not be remembering
we must not be remembering
you must not be remembering
they must not be remembering	I must not have remembered
you must not have remembered
she must not have remembered
we must not have remembered
you must not have remembered
they must not have remembered	I must not have been remembering
you must not have been remembering
she must not have been remembering
we must not have been remembering
you must not have been remembering
they must not have been remembering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I remember?
must you remember?
must she remember?
must we remember?
must you remember?
must they remember? 	must I be remembering?
must you be remembering?
must she be remembering?
must we be remembering?
must you be remembering?
must they be remembering? 	must I have remembered?
must you have remembered?
must she have remembered?
must we have remembered?
must you have remembered?
must they have remembered? 	must I have been remembering?
must you have been remembering?
must she have been remembering?
must we have been remembering?
must you have been remembering?
must they have been remembering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not remember?
must you not remember?
must she not remember?
must we not remember?
must you not remember?
must they not remember? 	must I not be remembering?
must you not be remembering?
must she not be remembering?
must we not be remembering?
must you not be remembering?
must they not be remembering? 	must I not have remembered?
must you not have remembered?
must she not have remembered?
must we not have remembered?
must you not have remembered?
must they not have remembered? 	must I not have been remembering?
must you not have been remembering?
must she not have been remembering?
must we not have been remembering?
must you not have been remembering?
must they not have been remembering?