must lute
Regular verb: lute - luted- luted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must lute
you must lute
she must lute
we must lute
you must lute
they must lute 	I must be luting
you must be luting
she must be luting
we must be luting
you must be luting
they must be luting	I must have luted
you must have luted
she must have luted
we must have luted
you must have luted
they must have luted	I must have been luting
you must have been luting
she must have been luting
we must have been luting
you must have been luting
they must have been luting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not lute
you must not lute
she must not lute
we must not lute
you must not lute
they must not lute 	I must not be luting
you must not be luting
she must not be luting
we must not be luting
you must not be luting
they must not be luting	I must not have luted
you must not have luted
she must not have luted
we must not have luted
you must not have luted
they must not have luted	I must not have been luting
you must not have been luting
she must not have been luting
we must not have been luting
you must not have been luting
they must not have been luting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I lute?
must you lute?
must she lute?
must we lute?
must you lute?
must they lute? 	must I be luting?
must you be luting?
must she be luting?
must we be luting?
must you be luting?
must they be luting? 	must I have luted?
must you have luted?
must she have luted?
must we have luted?
must you have luted?
must they have luted? 	must I have been luting?
must you have been luting?
must she have been luting?
must we have been luting?
must you have been luting?
must they have been luting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not lute?
must you not lute?
must she not lute?
must we not lute?
must you not lute?
must they not lute? 	must I not be luting?
must you not be luting?
must she not be luting?
must we not be luting?
must you not be luting?
must they not be luting? 	must I not have luted?
must you not have luted?
must she not have luted?
must we not have luted?
must you not have luted?
must they not have luted? 	must I not have been luting?
must you not have been luting?
must she not have been luting?
must we not have been luting?
must you not have been luting?
must they not have been luting?