must shimmer
Regular verb: shimmer - shimmered- shimmered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must shimmer
you must shimmer
she must shimmer
we must shimmer
you must shimmer
they must shimmer 	I must be shimmering
you must be shimmering
she must be shimmering
we must be shimmering
you must be shimmering
they must be shimmering	I must have shimmered
you must have shimmered
she must have shimmered
we must have shimmered
you must have shimmered
they must have shimmered	I must have been shimmering
you must have been shimmering
she must have been shimmering
we must have been shimmering
you must have been shimmering
they must have been shimmering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not shimmer
you must not shimmer
she must not shimmer
we must not shimmer
you must not shimmer
they must not shimmer 	I must not be shimmering
you must not be shimmering
she must not be shimmering
we must not be shimmering
you must not be shimmering
they must not be shimmering	I must not have shimmered
you must not have shimmered
she must not have shimmered
we must not have shimmered
you must not have shimmered
they must not have shimmered	I must not have been shimmering
you must not have been shimmering
she must not have been shimmering
we must not have been shimmering
you must not have been shimmering
they must not have been shimmering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I shimmer?
must you shimmer?
must she shimmer?
must we shimmer?
must you shimmer?
must they shimmer? 	must I be shimmering?
must you be shimmering?
must she be shimmering?
must we be shimmering?
must you be shimmering?
must they be shimmering? 	must I have shimmered?
must you have shimmered?
must she have shimmered?
must we have shimmered?
must you have shimmered?
must they have shimmered? 	must I have been shimmering?
must you have been shimmering?
must she have been shimmering?
must we have been shimmering?
must you have been shimmering?
must they have been shimmering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not shimmer?
must you not shimmer?
must she not shimmer?
must we not shimmer?
must you not shimmer?
must they not shimmer? 	must I not be shimmering?
must you not be shimmering?
must she not be shimmering?
must we not be shimmering?
must you not be shimmering?
must they not be shimmering? 	must I not have shimmered?
must you not have shimmered?
must she not have shimmered?
must we not have shimmered?
must you not have shimmered?
must they not have shimmered? 	must I not have been shimmering?
must you not have been shimmering?
must she not have been shimmering?
must we not have been shimmering?
must you not have been shimmering?
must they not have been shimmering?