may investigate
Verbo regular: investigate - investigated- investigated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may investigate
you may investigate
he may investigate
we may investigate
you may investigate
they may investigate 	I may be investigating
you may be investigating
he may be investigating
we may be investigating
you may be investigating
they may be investigating	I may have investigated
you may have investigated
he may have investigated
we may have investigated
you may have investigated
they may have investigated	I may have been investigating
you may have been investigating
he may have been investigating
we may have been investigating
you may have been investigating
they may have been investigating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't investigate
you mayn't investigate
he mayn't investigate
we mayn't investigate
you mayn't investigate
they mayn't investigate 	I mayn't be investigating
you mayn't be investigating
he mayn't be investigating
we mayn't be investigating
you mayn't be investigating
they mayn't be investigating	I mayn't have investigated
you mayn't have investigated
he mayn't have investigated
we mayn't have investigated
you mayn't have investigated
they mayn't have investigated	I mayn't have been investigating
you mayn't have been investigating
he mayn't have been investigating
we mayn't have been investigating
you mayn't have been investigating
they mayn't have been investigating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I investigate?
may you investigate?
may he investigate?
may we investigate?
may you investigate?
may they investigate? 	may I be investigating?
may you be investigating?
may he be investigating?
may we be investigating?
may you be investigating?
may they be investigating? 	may I have investigated?
may you have investigated?
may he have investigated?
may we have investigated?
may you have investigated?
may they have investigated? 	may I have been investigating?
may you have been investigating?
may he have been investigating?
may we have been investigating?
may you have been investigating?
may they have been investigating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I investigate?
mayn't you investigate?
mayn't he investigate?
mayn't we investigate?
mayn't you investigate?
mayn't they investigate? 	mayn't I be investigating?
mayn't you be investigating?
mayn't he be investigating?
mayn't we be investigating?
mayn't you be investigating?
mayn't they be investigating? 	mayn't I have investigated?
mayn't you have investigated?
mayn't he have investigated?
mayn't we have investigated?
mayn't you have investigated?
mayn't they have investigated? 	mayn't I have been investigating?
mayn't you have been investigating?
mayn't he have been investigating?
mayn't we have been investigating?
mayn't you have been investigating?
mayn't they have been investigating?