must grope
Regular verb: grope - groped- groped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must grope
you must grope
he must grope
we must grope
you must grope
they must grope 	I must be groping
you must be groping
he must be groping
we must be groping
you must be groping
they must be groping	I must have groped
you must have groped
he must have groped
we must have groped
you must have groped
they must have groped	I must have been groping
you must have been groping
he must have been groping
we must have been groping
you must have been groping
they must have been groping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't grope
you mustn't grope
he mustn't grope
we mustn't grope
you mustn't grope
they mustn't grope 	I mustn't be groping
you mustn't be groping
he mustn't be groping
we mustn't be groping
you mustn't be groping
they mustn't be groping	I mustn't have groped
you mustn't have groped
he mustn't have groped
we mustn't have groped
you mustn't have groped
they mustn't have groped	I mustn't have been groping
you mustn't have been groping
he mustn't have been groping
we mustn't have been groping
you mustn't have been groping
they mustn't have been groping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I grope?
must you grope?
must he grope?
must we grope?
must you grope?
must they grope? 	must I be groping?
must you be groping?
must he be groping?
must we be groping?
must you be groping?
must they be groping? 	must I have groped?
must you have groped?
must he have groped?
must we have groped?
must you have groped?
must they have groped? 	must I have been groping?
must you have been groping?
must he have been groping?
must we have been groping?
must you have been groping?
must they have been groping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I grope?
mustn't you grope?
mustn't he grope?
mustn't we grope?
mustn't you grope?
mustn't they grope? 	mustn't I be groping?
mustn't you be groping?
mustn't he be groping?
mustn't we be groping?
mustn't you be groping?
mustn't they be groping? 	mustn't I have groped?
mustn't you have groped?
mustn't he have groped?
mustn't we have groped?
mustn't you have groped?
mustn't they have groped? 	mustn't I have been groping?
mustn't you have been groping?
mustn't he have been groping?
mustn't we have been groping?
mustn't you have been groping?
mustn't they have been groping?