must pinch
Regular verb: pinch - pinched- pinched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pinch
you must pinch
she must pinch
we must pinch
you must pinch
they must pinch 	I must be pinching
you must be pinching
she must be pinching
we must be pinching
you must be pinching
they must be pinching	I must have pinched
you must have pinched
she must have pinched
we must have pinched
you must have pinched
they must have pinched	I must have been pinching
you must have been pinching
she must have been pinching
we must have been pinching
you must have been pinching
they must have been pinching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not pinch
you must not pinch
she must not pinch
we must not pinch
you must not pinch
they must not pinch 	I must not be pinching
you must not be pinching
she must not be pinching
we must not be pinching
you must not be pinching
they must not be pinching	I must not have pinched
you must not have pinched
she must not have pinched
we must not have pinched
you must not have pinched
they must not have pinched	I must not have been pinching
you must not have been pinching
she must not have been pinching
we must not have been pinching
you must not have been pinching
they must not have been pinching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pinch?
must you pinch?
must she pinch?
must we pinch?
must you pinch?
must they pinch? 	must I be pinching?
must you be pinching?
must she be pinching?
must we be pinching?
must you be pinching?
must they be pinching? 	must I have pinched?
must you have pinched?
must she have pinched?
must we have pinched?
must you have pinched?
must they have pinched? 	must I have been pinching?
must you have been pinching?
must she have been pinching?
must we have been pinching?
must you have been pinching?
must they have been pinching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not pinch?
must you not pinch?
must she not pinch?
must we not pinch?
must you not pinch?
must they not pinch? 	must I not be pinching?
must you not be pinching?
must she not be pinching?
must we not be pinching?
must you not be pinching?
must they not be pinching? 	must I not have pinched?
must you not have pinched?
must she not have pinched?
must we not have pinched?
must you not have pinched?
must they not have pinched? 	must I not have been pinching?
must you not have been pinching?
must she not have been pinching?
must we not have been pinching?
must you not have been pinching?
must they not have been pinching?