can investigate
Verbo regolare: investigate - investigated- investigated

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

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

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

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