would investigate
Regular verb: investigate - investigated- investigated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd investigate
you'd investigate
he'd investigate
we'd investigate
you'd investigate
they'd investigate 	I'd be investigating
you'd be investigating
he'd be investigating
we'd be investigating
you'd be investigating
they'd be investigating	I would've investigated
you would've investigated
he would've investigated
we would've investigated
you would've investigated
they would've investigated	I would've been investigating
you would've been investigating
he would've been investigating
we would've been investigating
you would've been investigating
they would've been investigating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't investigate
you wouldn't investigate
he wouldn't investigate
we wouldn't investigate
you wouldn't investigate
they wouldn't investigate 	I wouldn't be investigating
you wouldn't be investigating
he wouldn't be investigating
we wouldn't be investigating
you wouldn't be investigating
they wouldn't be investigating	I wouldn't have investigated
you wouldn't have investigated
he wouldn't have investigated
we wouldn't have investigated
you wouldn't have investigated
they wouldn't have investigated	I wouldn't have been investigating
you wouldn't have been investigating
he wouldn't have been investigating
we wouldn't have been investigating
you wouldn't have been investigating
they wouldn't have been investigating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I investigate?
would you investigate?
would he investigate?
would we investigate?
would you investigate?
would they investigate? 	would I be investigating?
would you be investigating?
would he be investigating?
would we be investigating?
would you be investigating?
would they be investigating? 	would I have investigated?
would you have investigated?
would he have investigated?
would we have investigated?
would you have investigated?
would they have investigated? 	would I have been investigating?
would you have been investigating?
would he have been investigating?
would we have been investigating?
would you have been investigating?
would they have been investigating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I investigate?
wouldn't you investigate?
wouldn't he investigate?
wouldn't we investigate?
wouldn't you investigate?
wouldn't they investigate? 	wouldn't I be investigating?
wouldn't you be investigating?
wouldn't he be investigating?
wouldn't we be investigating?
wouldn't you be investigating?
wouldn't they be investigating? 	wouldn't I have investigated?
wouldn't you have investigated?
wouldn't he have investigated?
wouldn't we have investigated?
wouldn't you have investigated?
wouldn't they have investigated? 	wouldn't I have been investigating?
wouldn't you have been investigating?
wouldn't he have been investigating?
wouldn't we have been investigating?
wouldn't you have been investigating?
wouldn't they have been investigating?