must perspire
Regular verb: perspire - perspired- perspired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must perspire
you must perspire
he must perspire
we must perspire
you must perspire
they must perspire 	I must be perspiring
you must be perspiring
he must be perspiring
we must be perspiring
you must be perspiring
they must be perspiring	I must have perspired
you must have perspired
he must have perspired
we must have perspired
you must have perspired
they must have perspired	I must have been perspiring
you must have been perspiring
he must have been perspiring
we must have been perspiring
you must have been perspiring
they must have been perspiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not perspire
you must not perspire
he must not perspire
we must not perspire
you must not perspire
they must not perspire 	I must not be perspiring
you must not be perspiring
he must not be perspiring
we must not be perspiring
you must not be perspiring
they must not be perspiring	I must not have perspired
you must not have perspired
he must not have perspired
we must not have perspired
you must not have perspired
they must not have perspired	I must not have been perspiring
you must not have been perspiring
he must not have been perspiring
we must not have been perspiring
you must not have been perspiring
they must not have been perspiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I perspire?
must you perspire?
must he perspire?
must we perspire?
must you perspire?
must they perspire? 	must I be perspiring?
must you be perspiring?
must he be perspiring?
must we be perspiring?
must you be perspiring?
must they be perspiring? 	must I have perspired?
must you have perspired?
must he have perspired?
must we have perspired?
must you have perspired?
must they have perspired? 	must I have been perspiring?
must you have been perspiring?
must he have been perspiring?
must we have been perspiring?
must you have been perspiring?
must they have been perspiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not perspire?
must you not perspire?
must he not perspire?
must we not perspire?
must you not perspire?
must they not perspire? 	must I not be perspiring?
must you not be perspiring?
must he not be perspiring?
must we not be perspiring?
must you not be perspiring?
must they not be perspiring? 	must I not have perspired?
must you not have perspired?
must he not have perspired?
must we not have perspired?
must you not have perspired?
must they not have perspired? 	must I not have been perspiring?
must you not have been perspiring?
must he not have been perspiring?
must we not have been perspiring?
must you not have been perspiring?
must they not have been perspiring?