should impact
Regular verb: impact - impacted- impacted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd impact
you'd impact
he'd impact
we'd impact
you'd impact
they'd impact 	I'd be impacting
you'd be impacting
he'd be impacting
we'd be impacting
you'd be impacting
they'd be impacting	I should've impacted
you should've impacted
he should've impacted
we should've impacted
you should've impacted
they should've impacted	I should've been impacting
you should've been impacting
he should've been impacting
we should've been impacting
you should've been impacting
they should've been impacting	

Negation 	
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I shouldn't impact
you shouldn't impact
he shouldn't impact
we shouldn't impact
you shouldn't impact
they shouldn't impact 	I shouldn't be impacting
you shouldn't be impacting
he shouldn't be impacting
we shouldn't be impacting
you shouldn't be impacting
they shouldn't be impacting	I shouldn't have impacted
you shouldn't have impacted
he shouldn't have impacted
we shouldn't have impacted
you shouldn't have impacted
they shouldn't have impacted	I shouldn't have been impacting
you shouldn't have been impacting
he shouldn't have been impacting
we shouldn't have been impacting
you shouldn't have been impacting
they shouldn't have been impacting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I impact?
should you impact?
should he impact?
should we impact?
should you impact?
should they impact? 	should I be impacting?
should you be impacting?
should he be impacting?
should we be impacting?
should you be impacting?
should they be impacting? 	should I have impacted?
should you have impacted?
should he have impacted?
should we have impacted?
should you have impacted?
should they have impacted? 	should I have been impacting?
should you have been impacting?
should he have been impacting?
should we have been impacting?
should you have been impacting?
should they have been impacting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I impact?
shouldn't you impact?
shouldn't he impact?
shouldn't we impact?
shouldn't you impact?
shouldn't they impact? 	shouldn't I be impacting?
shouldn't you be impacting?
shouldn't he be impacting?
shouldn't we be impacting?
shouldn't you be impacting?
shouldn't they be impacting? 	shouldn't I have impacted?
shouldn't you have impacted?
shouldn't he have impacted?
shouldn't we have impacted?
shouldn't you have impacted?
shouldn't they have impacted? 	shouldn't I have been impacting?
shouldn't you have been impacting?
shouldn't he have been impacting?
shouldn't we have been impacting?
shouldn't you have been impacting?
shouldn't they have been impacting?