must blink
Regular verb: blink - blinked- blinked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must blink
you must blink
she must blink
we must blink
you must blink
they must blink 	I must be blinking
you must be blinking
she must be blinking
we must be blinking
you must be blinking
they must be blinking	I must have blinked
you must have blinked
she must have blinked
we must have blinked
you must have blinked
they must have blinked	I must have been blinking
you must have been blinking
she must have been blinking
we must have been blinking
you must have been blinking
they must have been blinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not blink
you must not blink
she must not blink
we must not blink
you must not blink
they must not blink 	I must not be blinking
you must not be blinking
she must not be blinking
we must not be blinking
you must not be blinking
they must not be blinking	I must not have blinked
you must not have blinked
she must not have blinked
we must not have blinked
you must not have blinked
they must not have blinked	I must not have been blinking
you must not have been blinking
she must not have been blinking
we must not have been blinking
you must not have been blinking
they must not have been blinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I blink?
must you blink?
must she blink?
must we blink?
must you blink?
must they blink? 	must I be blinking?
must you be blinking?
must she be blinking?
must we be blinking?
must you be blinking?
must they be blinking? 	must I have blinked?
must you have blinked?
must she have blinked?
must we have blinked?
must you have blinked?
must they have blinked? 	must I have been blinking?
must you have been blinking?
must she have been blinking?
must we have been blinking?
must you have been blinking?
must they have been blinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not blink?
must you not blink?
must she not blink?
must we not blink?
must you not blink?
must they not blink? 	must I not be blinking?
must you not be blinking?
must she not be blinking?
must we not be blinking?
must you not be blinking?
must they not be blinking? 	must I not have blinked?
must you not have blinked?
must she not have blinked?
must we not have blinked?
must you not have blinked?
must they not have blinked? 	must I not have been blinking?
must you not have been blinking?
must she not have been blinking?
must we not have been blinking?
must you not have been blinking?
must they not have been blinking?