must pinwheel
Regular verb: pinwheel - pinwheeled- pinwheeled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must pinwheel
you must pinwheel
she must pinwheel
we must pinwheel
you must pinwheel
they must pinwheel 	I must be pinwheeling
you must be pinwheeling
she must be pinwheeling
we must be pinwheeling
you must be pinwheeling
they must be pinwheeling	I must have pinwheeled
you must have pinwheeled
she must have pinwheeled
we must have pinwheeled
you must have pinwheeled
they must have pinwheeled	I must have been pinwheeling
you must have been pinwheeling
she must have been pinwheeling
we must have been pinwheeling
you must have been pinwheeling
they must have been pinwheeling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not pinwheel
you must not pinwheel
she must not pinwheel
we must not pinwheel
you must not pinwheel
they must not pinwheel 	I must not be pinwheeling
you must not be pinwheeling
she must not be pinwheeling
we must not be pinwheeling
you must not be pinwheeling
they must not be pinwheeling	I must not have pinwheeled
you must not have pinwheeled
she must not have pinwheeled
we must not have pinwheeled
you must not have pinwheeled
they must not have pinwheeled	I must not have been pinwheeling
you must not have been pinwheeling
she must not have been pinwheeling
we must not have been pinwheeling
you must not have been pinwheeling
they must not have been pinwheeling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I pinwheel?
must you pinwheel?
must she pinwheel?
must we pinwheel?
must you pinwheel?
must they pinwheel? 	must I be pinwheeling?
must you be pinwheeling?
must she be pinwheeling?
must we be pinwheeling?
must you be pinwheeling?
must they be pinwheeling? 	must I have pinwheeled?
must you have pinwheeled?
must she have pinwheeled?
must we have pinwheeled?
must you have pinwheeled?
must they have pinwheeled? 	must I have been pinwheeling?
must you have been pinwheeling?
must she have been pinwheeling?
must we have been pinwheeling?
must you have been pinwheeling?
must they have been pinwheeling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not pinwheel?
must you not pinwheel?
must she not pinwheel?
must we not pinwheel?
must you not pinwheel?
must they not pinwheel? 	must I not be pinwheeling?
must you not be pinwheeling?
must she not be pinwheeling?
must we not be pinwheeling?
must you not be pinwheeling?
must they not be pinwheeling? 	must I not have pinwheeled?
must you not have pinwheeled?
must she not have pinwheeled?
must we not have pinwheeled?
must you not have pinwheeled?
must they not have pinwheeled? 	must I not have been pinwheeling?
must you not have been pinwheeling?
must she not have been pinwheeling?
must we not have been pinwheeling?
must you not have been pinwheeling?
must they not have been pinwheeling?