must sliver
Regular verb: sliver - slivered- slivered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must sliver
you must sliver
she must sliver
we must sliver
you must sliver
they must sliver 	I must be slivering
you must be slivering
she must be slivering
we must be slivering
you must be slivering
they must be slivering	I must have slivered
you must have slivered
she must have slivered
we must have slivered
you must have slivered
they must have slivered	I must have been slivering
you must have been slivering
she must have been slivering
we must have been slivering
you must have been slivering
they must have been slivering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not sliver
you must not sliver
she must not sliver
we must not sliver
you must not sliver
they must not sliver 	I must not be slivering
you must not be slivering
she must not be slivering
we must not be slivering
you must not be slivering
they must not be slivering	I must not have slivered
you must not have slivered
she must not have slivered
we must not have slivered
you must not have slivered
they must not have slivered	I must not have been slivering
you must not have been slivering
she must not have been slivering
we must not have been slivering
you must not have been slivering
they must not have been slivering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I sliver?
must you sliver?
must she sliver?
must we sliver?
must you sliver?
must they sliver? 	must I be slivering?
must you be slivering?
must she be slivering?
must we be slivering?
must you be slivering?
must they be slivering? 	must I have slivered?
must you have slivered?
must she have slivered?
must we have slivered?
must you have slivered?
must they have slivered? 	must I have been slivering?
must you have been slivering?
must she have been slivering?
must we have been slivering?
must you have been slivering?
must they have been slivering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not sliver?
must you not sliver?
must she not sliver?
must we not sliver?
must you not sliver?
must they not sliver? 	must I not be slivering?
must you not be slivering?
must she not be slivering?
must we not be slivering?
must you not be slivering?
must they not be slivering? 	must I not have slivered?
must you not have slivered?
must she not have slivered?
must we not have slivered?
must you not have slivered?
must they not have slivered? 	must I not have been slivering?
must you not have been slivering?
must she not have been slivering?
must we not have been slivering?
must you not have been slivering?
must they not have been slivering?