must flicker
Verbo regular: flicker - flickered- flickered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must flicker
you must flicker
he must flicker
we must flicker
you must flicker
they must flicker 	I must be flickering
you must be flickering
he must be flickering
we must be flickering
you must be flickering
they must be flickering	I must have flickered
you must have flickered
he must have flickered
we must have flickered
you must have flickered
they must have flickered	I must have been flickering
you must have been flickering
he must have been flickering
we must have been flickering
you must have been flickering
they must have been flickering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not flicker
you must not flicker
he must not flicker
we must not flicker
you must not flicker
they must not flicker 	I must not be flickering
you must not be flickering
he must not be flickering
we must not be flickering
you must not be flickering
they must not be flickering	I must not have flickered
you must not have flickered
he must not have flickered
we must not have flickered
you must not have flickered
they must not have flickered	I must not have been flickering
you must not have been flickering
he must not have been flickering
we must not have been flickering
you must not have been flickering
they must not have been flickering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I flicker?
must you flicker?
must he flicker?
must we flicker?
must you flicker?
must they flicker? 	must I be flickering?
must you be flickering?
must he be flickering?
must we be flickering?
must you be flickering?
must they be flickering? 	must I have flickered?
must you have flickered?
must he have flickered?
must we have flickered?
must you have flickered?
must they have flickered? 	must I have been flickering?
must you have been flickering?
must he have been flickering?
must we have been flickering?
must you have been flickering?
must they have been flickering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not flicker?
must you not flicker?
must he not flicker?
must we not flicker?
must you not flicker?
must they not flicker? 	must I not be flickering?
must you not be flickering?
must he not be flickering?
must we not be flickering?
must you not be flickering?
must they not be flickering? 	must I not have flickered?
must you not have flickered?
must he not have flickered?
must we not have flickered?
must you not have flickered?
must they not have flickered? 	must I not have been flickering?
must you not have been flickering?
must he not have been flickering?
must we not have been flickering?
must you not have been flickering?
must they not have been flickering?