must prink
Regular verb: prink - prinked- prinked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must prink
you must prink
she must prink
we must prink
you must prink
they must prink 	I must be prinking
you must be prinking
she must be prinking
we must be prinking
you must be prinking
they must be prinking	I must have prinked
you must have prinked
she must have prinked
we must have prinked
you must have prinked
they must have prinked	I must have been prinking
you must have been prinking
she must have been prinking
we must have been prinking
you must have been prinking
they must have been prinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not prink
you must not prink
she must not prink
we must not prink
you must not prink
they must not prink 	I must not be prinking
you must not be prinking
she must not be prinking
we must not be prinking
you must not be prinking
they must not be prinking	I must not have prinked
you must not have prinked
she must not have prinked
we must not have prinked
you must not have prinked
they must not have prinked	I must not have been prinking
you must not have been prinking
she must not have been prinking
we must not have been prinking
you must not have been prinking
they must not have been prinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I prink?
must you prink?
must she prink?
must we prink?
must you prink?
must they prink? 	must I be prinking?
must you be prinking?
must she be prinking?
must we be prinking?
must you be prinking?
must they be prinking? 	must I have prinked?
must you have prinked?
must she have prinked?
must we have prinked?
must you have prinked?
must they have prinked? 	must I have been prinking?
must you have been prinking?
must she have been prinking?
must we have been prinking?
must you have been prinking?
must they have been prinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not prink?
must you not prink?
must she not prink?
must we not prink?
must you not prink?
must they not prink? 	must I not be prinking?
must you not be prinking?
must she not be prinking?
must we not be prinking?
must you not be prinking?
must they not be prinking? 	must I not have prinked?
must you not have prinked?
must she not have prinked?
must we not have prinked?
must you not have prinked?
must they not have prinked? 	must I not have been prinking?
must you not have been prinking?
must she not have been prinking?
must we not have been prinking?
must you not have been prinking?
must they not have been prinking?