must perplex
Regular verb: perplex - perplexed- perplexed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perplex
you must perplex
he must perplex
we must perplex
you must perplex
they must perplex 	I must be perplexing
you must be perplexing
he must be perplexing
we must be perplexing
you must be perplexing
they must be perplexing	I must have perplexed
you must have perplexed
he must have perplexed
we must have perplexed
you must have perplexed
they must have perplexed	I must have been perplexing
you must have been perplexing
he must have been perplexing
we must have been perplexing
you must have been perplexing
they must have been perplexing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not perplex
you must not perplex
he must not perplex
we must not perplex
you must not perplex
they must not perplex 	I must not be perplexing
you must not be perplexing
he must not be perplexing
we must not be perplexing
you must not be perplexing
they must not be perplexing	I must not have perplexed
you must not have perplexed
he must not have perplexed
we must not have perplexed
you must not have perplexed
they must not have perplexed	I must not have been perplexing
you must not have been perplexing
he must not have been perplexing
we must not have been perplexing
you must not have been perplexing
they must not have been perplexing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perplex?
must you perplex?
must he perplex?
must we perplex?
must you perplex?
must they perplex? 	must I be perplexing?
must you be perplexing?
must he be perplexing?
must we be perplexing?
must you be perplexing?
must they be perplexing? 	must I have perplexed?
must you have perplexed?
must he have perplexed?
must we have perplexed?
must you have perplexed?
must they have perplexed? 	must I have been perplexing?
must you have been perplexing?
must he have been perplexing?
must we have been perplexing?
must you have been perplexing?
must they have been perplexing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not perplex?
must you not perplex?
must he not perplex?
must we not perplex?
must you not perplex?
must they not perplex? 	must I not be perplexing?
must you not be perplexing?
must he not be perplexing?
must we not be perplexing?
must you not be perplexing?
must they not be perplexing? 	must I not have perplexed?
must you not have perplexed?
must he not have perplexed?
must we not have perplexed?
must you not have perplexed?
must they not have perplexed? 	must I not have been perplexing?
must you not have been perplexing?
must he not have been perplexing?
must we not have been perplexing?
must you not have been perplexing?
must they not have been perplexing?