must tut
Regular verb: tut - tuted- tuted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must tut
you must tut
she must tut
we must tut
you must tut
they must tut 	I must be tuting
you must be tuting
she must be tuting
we must be tuting
you must be tuting
they must be tuting	I must have tuted
you must have tuted
she must have tuted
we must have tuted
you must have tuted
they must have tuted	I must have been tuting
you must have been tuting
she must have been tuting
we must have been tuting
you must have been tuting
they must have been tuting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't tut
you mustn't tut
she mustn't tut
we mustn't tut
you mustn't tut
they mustn't tut 	I mustn't be tuting
you mustn't be tuting
she mustn't be tuting
we mustn't be tuting
you mustn't be tuting
they mustn't be tuting	I mustn't have tuted
you mustn't have tuted
she mustn't have tuted
we mustn't have tuted
you mustn't have tuted
they mustn't have tuted	I mustn't have been tuting
you mustn't have been tuting
she mustn't have been tuting
we mustn't have been tuting
you mustn't have been tuting
they mustn't have been tuting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I tut?
must you tut?
must she tut?
must we tut?
must you tut?
must they tut? 	must I be tuting?
must you be tuting?
must she be tuting?
must we be tuting?
must you be tuting?
must they be tuting? 	must I have tuted?
must you have tuted?
must she have tuted?
must we have tuted?
must you have tuted?
must they have tuted? 	must I have been tuting?
must you have been tuting?
must she have been tuting?
must we have been tuting?
must you have been tuting?
must they have been tuting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I tut?
mustn't you tut?
mustn't she tut?
mustn't we tut?
mustn't you tut?
mustn't they tut? 	mustn't I be tuting?
mustn't you be tuting?
mustn't she be tuting?
mustn't we be tuting?
mustn't you be tuting?
mustn't they be tuting? 	mustn't I have tuted?
mustn't you have tuted?
mustn't she have tuted?
mustn't we have tuted?
mustn't you have tuted?
mustn't they have tuted? 	mustn't I have been tuting?
mustn't you have been tuting?
mustn't she have been tuting?
mustn't we have been tuting?
mustn't you have been tuting?
mustn't they have been tuting?