must sweat
Regular verb: sweat - sweated- sweated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must sweat
you must sweat
she must sweat
we must sweat
you must sweat
they must sweat 	I must be sweating
you must be sweating
she must be sweating
we must be sweating
you must be sweating
they must be sweating	I must have sweated
you must have sweated
she must have sweated
we must have sweated
you must have sweated
they must have sweated	I must have been sweating
you must have been sweating
she must have been sweating
we must have been sweating
you must have been sweating
they must have been sweating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not sweat
you must not sweat
she must not sweat
we must not sweat
you must not sweat
they must not sweat 	I must not be sweating
you must not be sweating
she must not be sweating
we must not be sweating
you must not be sweating
they must not be sweating	I must not have sweated
you must not have sweated
she must not have sweated
we must not have sweated
you must not have sweated
they must not have sweated	I must not have been sweating
you must not have been sweating
she must not have been sweating
we must not have been sweating
you must not have been sweating
they must not have been sweating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I sweat?
must you sweat?
must she sweat?
must we sweat?
must you sweat?
must they sweat? 	must I be sweating?
must you be sweating?
must she be sweating?
must we be sweating?
must you be sweating?
must they be sweating? 	must I have sweated?
must you have sweated?
must she have sweated?
must we have sweated?
must you have sweated?
must they have sweated? 	must I have been sweating?
must you have been sweating?
must she have been sweating?
must we have been sweating?
must you have been sweating?
must they have been sweating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not sweat?
must you not sweat?
must she not sweat?
must we not sweat?
must you not sweat?
must they not sweat? 	must I not be sweating?
must you not be sweating?
must she not be sweating?
must we not be sweating?
must you not be sweating?
must they not be sweating? 	must I not have sweated?
must you not have sweated?
must she not have sweated?
must we not have sweated?
must you not have sweated?
must they not have sweated? 	must I not have been sweating?
must you not have been sweating?
must she not have been sweating?
must we not have been sweating?
must you not have been sweating?
must they not have been sweating?