must exasperate
Regular verb: exasperate - exasperated- exasperated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must exasperate
you must exasperate
he must exasperate
we must exasperate
you must exasperate
they must exasperate 	I must be exasperating
you must be exasperating
he must be exasperating
we must be exasperating
you must be exasperating
they must be exasperating	I must have exasperated
you must have exasperated
he must have exasperated
we must have exasperated
you must have exasperated
they must have exasperated	I must have been exasperating
you must have been exasperating
he must have been exasperating
we must have been exasperating
you must have been exasperating
they must have been exasperating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't exasperate
you mustn't exasperate
he mustn't exasperate
we mustn't exasperate
you mustn't exasperate
they mustn't exasperate 	I mustn't be exasperating
you mustn't be exasperating
he mustn't be exasperating
we mustn't be exasperating
you mustn't be exasperating
they mustn't be exasperating	I mustn't have exasperated
you mustn't have exasperated
he mustn't have exasperated
we mustn't have exasperated
you mustn't have exasperated
they mustn't have exasperated	I mustn't have been exasperating
you mustn't have been exasperating
he mustn't have been exasperating
we mustn't have been exasperating
you mustn't have been exasperating
they mustn't have been exasperating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I exasperate?
must you exasperate?
must he exasperate?
must we exasperate?
must you exasperate?
must they exasperate? 	must I be exasperating?
must you be exasperating?
must he be exasperating?
must we be exasperating?
must you be exasperating?
must they be exasperating? 	must I have exasperated?
must you have exasperated?
must he have exasperated?
must we have exasperated?
must you have exasperated?
must they have exasperated? 	must I have been exasperating?
must you have been exasperating?
must he have been exasperating?
must we have been exasperating?
must you have been exasperating?
must they have been exasperating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I exasperate?
mustn't you exasperate?
mustn't he exasperate?
mustn't we exasperate?
mustn't you exasperate?
mustn't they exasperate? 	mustn't I be exasperating?
mustn't you be exasperating?
mustn't he be exasperating?
mustn't we be exasperating?
mustn't you be exasperating?
mustn't they be exasperating? 	mustn't I have exasperated?
mustn't you have exasperated?
mustn't he have exasperated?
mustn't we have exasperated?
mustn't you have exasperated?
mustn't they have exasperated? 	mustn't I have been exasperating?
mustn't you have been exasperating?
mustn't he have been exasperating?
mustn't we have been exasperating?
mustn't you have been exasperating?
mustn't they have been exasperating?