must slit
Irregular verb: slit - slit- slit

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must slit
you must slit
he must slit
we must slit
you must slit
they must slit 	I must be slitting
you must be slitting
he must be slitting
we must be slitting
you must be slitting
they must be slitting	I must have slit
you must have slit
he 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
he 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 must not slit
you must not slit
he must not slit
we must not slit
you must not slit
they must not slit 	I must not be slitting
you must not be slitting
he must not be slitting
we must not be slitting
you must not be slitting
they must not be slitting	I must not have slit
you must not have slit
he must not have slit
we must not have slit
you must not have slit
they must not have slit	I must not have been slitting
you must not have been slitting
he must not have been slitting
we must not have been slitting
you must not have been slitting
they must not have been slitting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I slit?
must you slit?
must he slit?
must we slit?
must you slit?
must they slit? 	must I be slitting?
must you be slitting?
must he be slitting?
must we be slitting?
must you be slitting?
must they be slitting? 	must I have slit?
must you have slit?
must he 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 he 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 	
must I not slit?
must you not slit?
must he not slit?
must we not slit?
must you not slit?
must they not slit? 	must I not be slitting?
must you not be slitting?
must he not be slitting?
must we not be slitting?
must you not be slitting?
must they not be slitting? 	must I not have slit?
must you not have slit?
must he not have slit?
must we not have slit?
must you not have slit?
must they not have slit? 	must I not have been slitting?
must you not have been slitting?
must he not have been slitting?
must we not have been slitting?
must you not have been slitting?
must they not have been slitting?