must impact
Verbo regular: impact - impacted- impacted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must impact
you must impact
he must impact
we must impact
you must impact
they must impact 	I must be impacting
you must be impacting
he must be impacting
we must be impacting
you must be impacting
they must be impacting	I must have impacted
you must have impacted
he must have impacted
we must have impacted
you must have impacted
they must have impacted	I must have been impacting
you must have been impacting
he must have been impacting
we must have been impacting
you must have been impacting
they must have been impacting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't impact
you mustn't impact
he mustn't impact
we mustn't impact
you mustn't impact
they mustn't impact 	I mustn't be impacting
you mustn't be impacting
he mustn't be impacting
we mustn't be impacting
you mustn't be impacting
they mustn't be impacting	I mustn't have impacted
you mustn't have impacted
he mustn't have impacted
we mustn't have impacted
you mustn't have impacted
they mustn't have impacted	I mustn't have been impacting
you mustn't have been impacting
he mustn't have been impacting
we mustn't have been impacting
you mustn't have been impacting
they mustn't have been impacting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I impact?
must you impact?
must he impact?
must we impact?
must you impact?
must they impact? 	must I be impacting?
must you be impacting?
must he be impacting?
must we be impacting?
must you be impacting?
must they be impacting? 	must I have impacted?
must you have impacted?
must he have impacted?
must we have impacted?
must you have impacted?
must they have impacted? 	must I have been impacting?
must you have been impacting?
must he have been impacting?
must we have been impacting?
must you have been impacting?
must they have been impacting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I impact?
mustn't you impact?
mustn't he impact?
mustn't we impact?
mustn't you impact?
mustn't they impact? 	mustn't I be impacting?
mustn't you be impacting?
mustn't he be impacting?
mustn't we be impacting?
mustn't you be impacting?
mustn't they be impacting? 	mustn't I have impacted?
mustn't you have impacted?
mustn't he have impacted?
mustn't we have impacted?
mustn't you have impacted?
mustn't they have impacted? 	mustn't I have been impacting?
mustn't you have been impacting?
mustn't he have been impacting?
mustn't we have been impacting?
mustn't you have been impacting?
mustn't they have been impacting?