must unsling
Irregular verb: unsling - unslung- unslung

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must unsling
you must unsling
he must unsling
we must unsling
you must unsling
they must unsling 	I must be unslinging
you must be unslinging
he must be unslinging
we must be unslinging
you must be unslinging
they must be unslinging	I must have unslung
you must have unslung
he must have unslung
we must have unslung
you must have unslung
they must have unslung	I must have been unslinging
you must have been unslinging
he must have been unslinging
we must have been unslinging
you must have been unslinging
they must have been unslinging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not unsling
you must not unsling
he must not unsling
we must not unsling
you must not unsling
they must not unsling 	I must not be unslinging
you must not be unslinging
he must not be unslinging
we must not be unslinging
you must not be unslinging
they must not be unslinging	I must not have unslung
you must not have unslung
he must not have unslung
we must not have unslung
you must not have unslung
they must not have unslung	I must not have been unslinging
you must not have been unslinging
he must not have been unslinging
we must not have been unslinging
you must not have been unslinging
they must not have been unslinging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I unsling?
must you unsling?
must he unsling?
must we unsling?
must you unsling?
must they unsling? 	must I be unslinging?
must you be unslinging?
must he be unslinging?
must we be unslinging?
must you be unslinging?
must they be unslinging? 	must I have unslung?
must you have unslung?
must he have unslung?
must we have unslung?
must you have unslung?
must they have unslung? 	must I have been unslinging?
must you have been unslinging?
must he have been unslinging?
must we have been unslinging?
must you have been unslinging?
must they have been unslinging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not unsling?
must you not unsling?
must he not unsling?
must we not unsling?
must you not unsling?
must they not unsling? 	must I not be unslinging?
must you not be unslinging?
must he not be unslinging?
must we not be unslinging?
must you not be unslinging?
must they not be unslinging? 	must I not have unslung?
must you not have unslung?
must he not have unslung?
must we not have unslung?
must you not have unslung?
must they not have unslung? 	must I not have been unslinging?
must you not have been unslinging?
must he not have been unslinging?
must we not have been unslinging?
must you not have been unslinging?
must they not have been unslinging?