should investigate
Verbo regolare: investigate - investigated- investigated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should investigate
you should investigate
he should investigate
we should investigate
you should investigate
they should investigate 	I should be investigating
you should be investigating
he should be investigating
we should be investigating
you should be investigating
they should be investigating	I should have investigated
you should have investigated
he should have investigated
we should have investigated
you should have investigated
they should have investigated	I should have been investigating
you should have been investigating
he should have been investigating
we should have been investigating
you should have been investigating
they should have been investigating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I should not investigate
you should not investigate
he should not investigate
we should not investigate
you should not investigate
they should not investigate 	I should not be investigating
you should not be investigating
he should not be investigating
we should not be investigating
you should not be investigating
they should not be investigating	I should not have investigated
you should not have investigated
he should not have investigated
we should not have investigated
you should not have investigated
they should not have investigated	I should not have been investigating
you should not have been investigating
he should not have been investigating
we should not have been investigating
you should not have been investigating
they should not have been investigating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I investigate?
should you investigate?
should he investigate?
should we investigate?
should you investigate?
should they investigate? 	should I be investigating?
should you be investigating?
should he be investigating?
should we be investigating?
should you be investigating?
should they be investigating? 	should I have investigated?
should you have investigated?
should he have investigated?
should we have investigated?
should you have investigated?
should they have investigated? 	should I have been investigating?
should you have been investigating?
should he have been investigating?
should we have been investigating?
should you have been investigating?
should they have been investigating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I not investigate?
should you not investigate?
should he not investigate?
should we not investigate?
should you not investigate?
should they not investigate? 	should I not be investigating?
should you not be investigating?
should he not be investigating?
should we not be investigating?
should you not be investigating?
should they not be investigating? 	should I not have investigated?
should you not have investigated?
should he not have investigated?
should we not have investigated?
should you not have investigated?
should they not have investigated? 	should I not have been investigating?
should you not have been investigating?
should he not have been investigating?
should we not have been investigating?
should you not have been investigating?
should they not have been investigating?