must crutch
Regular verb: crutch - crutched- crutched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must crutch
you must crutch
he must crutch
we must crutch
you must crutch
they must crutch 	I must be crutching
you must be crutching
he must be crutching
we must be crutching
you must be crutching
they must be crutching	I must have crutched
you must have crutched
he must have crutched
we must have crutched
you must have crutched
they must have crutched	I must have been crutching
you must have been crutching
he must have been crutching
we must have been crutching
you must have been crutching
they must have been crutching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't crutch
you mustn't crutch
he mustn't crutch
we mustn't crutch
you mustn't crutch
they mustn't crutch 	I mustn't be crutching
you mustn't be crutching
he mustn't be crutching
we mustn't be crutching
you mustn't be crutching
they mustn't be crutching	I mustn't have crutched
you mustn't have crutched
he mustn't have crutched
we mustn't have crutched
you mustn't have crutched
they mustn't have crutched	I mustn't have been crutching
you mustn't have been crutching
he mustn't have been crutching
we mustn't have been crutching
you mustn't have been crutching
they mustn't have been crutching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I crutch?
must you crutch?
must he crutch?
must we crutch?
must you crutch?
must they crutch? 	must I be crutching?
must you be crutching?
must he be crutching?
must we be crutching?
must you be crutching?
must they be crutching? 	must I have crutched?
must you have crutched?
must he have crutched?
must we have crutched?
must you have crutched?
must they have crutched? 	must I have been crutching?
must you have been crutching?
must he have been crutching?
must we have been crutching?
must you have been crutching?
must they have been crutching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I crutch?
mustn't you crutch?
mustn't he crutch?
mustn't we crutch?
mustn't you crutch?
mustn't they crutch? 	mustn't I be crutching?
mustn't you be crutching?
mustn't he be crutching?
mustn't we be crutching?
mustn't you be crutching?
mustn't they be crutching? 	mustn't I have crutched?
mustn't you have crutched?
mustn't he have crutched?
mustn't we have crutched?
mustn't you have crutched?
mustn't they have crutched? 	mustn't I have been crutching?
mustn't you have been crutching?
mustn't he have been crutching?
mustn't we have been crutching?
mustn't you have been crutching?
mustn't they have been crutching?