must slit
Irregular verb: slit - slit- slit

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slit
you must slit
she must slit
we must slit
you must slit
they must slit 	I must be slitting
you must be slitting
she must be slitting
we must be slitting
you must be slitting
they must be slitting	I must have slit
you must have slit
she must have slit
we must have slit
you must have slit
they must have slit	I must have been slitting
you must have been slitting
she must have been slitting
we must have been slitting
you must have been slitting
they must have been slitting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't slit
you mustn't slit
she mustn't slit
we mustn't slit
you mustn't slit
they mustn't slit 	I mustn't be slitting
you mustn't be slitting
she mustn't be slitting
we mustn't be slitting
you mustn't be slitting
they mustn't be slitting	I mustn't have slit
you mustn't have slit
she mustn't have slit
we mustn't have slit
you mustn't have slit
they mustn't have slit	I mustn't have been slitting
you mustn't have been slitting
she mustn't have been slitting
we mustn't have been slitting
you mustn't have been slitting
they mustn't have been slitting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slit?
must you slit?
must she slit?
must we slit?
must you slit?
must they slit? 	must I be slitting?
must you be slitting?
must she be slitting?
must we be slitting?
must you be slitting?
must they be slitting? 	must I have slit?
must you have slit?
must she have slit?
must we have slit?
must you have slit?
must they have slit? 	must I have been slitting?
must you have been slitting?
must she have been slitting?
must we have been slitting?
must you have been slitting?
must they have been slitting? 	

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