must whip
Regular verb: whip - whipped- whipped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must whip
you must whip
he must whip
we must whip
you must whip
they must whip 	I must be whipping
you must be whipping
he must be whipping
we must be whipping
you must be whipping
they must be whipping	I must have whipped
you must have whipped
he must have whipped
we must have whipped
you must have whipped
they must have whipped	I must have been whipping
you must have been whipping
he must have been whipping
we must have been whipping
you must have been whipping
they must have been whipping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not whip
you must not whip
he must not whip
we must not whip
you must not whip
they must not whip 	I must not be whipping
you must not be whipping
he must not be whipping
we must not be whipping
you must not be whipping
they must not be whipping	I must not have whipped
you must not have whipped
he must not have whipped
we must not have whipped
you must not have whipped
they must not have whipped	I must not have been whipping
you must not have been whipping
he must not have been whipping
we must not have been whipping
you must not have been whipping
they must not have been whipping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I whip?
must you whip?
must he whip?
must we whip?
must you whip?
must they whip? 	must I be whipping?
must you be whipping?
must he be whipping?
must we be whipping?
must you be whipping?
must they be whipping? 	must I have whipped?
must you have whipped?
must he have whipped?
must we have whipped?
must you have whipped?
must they have whipped? 	must I have been whipping?
must you have been whipping?
must he have been whipping?
must we have been whipping?
must you have been whipping?
must they have been whipping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not whip?
must you not whip?
must he not whip?
must we not whip?
must you not whip?
must they not whip? 	must I not be whipping?
must you not be whipping?
must he not be whipping?
must we not be whipping?
must you not be whipping?
must they not be whipping? 	must I not have whipped?
must you not have whipped?
must he not have whipped?
must we not have whipped?
must you not have whipped?
must they not have whipped? 	must I not have been whipping?
must you not have been whipping?
must he not have been whipping?
must we not have been whipping?
must you not have been whipping?
must they not have been whipping?