can prevent
Verbo regolare: prevent - prevented- prevented

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can prevent
you can prevent
he can prevent
we can prevent
you can prevent
they can prevent 	I can be preventing
you can be preventing
he can be preventing
we can be preventing
you can be preventing
they can be preventing	I can have prevented
you can have prevented
he can have prevented
we can have prevented
you can have prevented
they can have prevented	I can have been preventing
you can have been preventing
he can have been preventing
we can have been preventing
you can have been preventing
they can have been preventing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can't prevent
you can't prevent
he can't prevent
we can't prevent
you can't prevent
they can't prevent 	I can't be preventing
you can't be preventing
he can't be preventing
we can't be preventing
you can't be preventing
they can't be preventing	I can't have prevented
you can't have prevented
he can't have prevented
we can't have prevented
you can't have prevented
they can't have prevented	I can't have been preventing
you can't have been preventing
he can't have been preventing
we can't have been preventing
you can't have been preventing
they can't have been preventing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I prevent?
can you prevent?
can he prevent?
can we prevent?
can you prevent?
can they prevent? 	can I be preventing?
can you be preventing?
can he be preventing?
can we be preventing?
can you be preventing?
can they be preventing? 	can I have prevented?
can you have prevented?
can he have prevented?
can we have prevented?
can you have prevented?
can they have prevented? 	can I have been preventing?
can you have been preventing?
can he have been preventing?
can we have been preventing?
can you have been preventing?
can they have been preventing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can't I prevent?
can't you prevent?
can't he prevent?
can't we prevent?
can't you prevent?
can't they prevent? 	can't I be preventing?
can't you be preventing?
can't he be preventing?
can't we be preventing?
can't you be preventing?
can't they be preventing? 	can't I have prevented?
can't you have prevented?
can't he have prevented?
can't we have prevented?
can't you have prevented?
can't they have prevented? 	can't I have been preventing?
can't you have been preventing?
can't he have been preventing?
can't we have been preventing?
can't you have been preventing?
can't they have been preventing?