can collapse
Verbo regolare: collapse - collapsed- collapsed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can collapse
you can collapse
she can collapse
we can collapse
you can collapse
they can collapse 	I can be collapsing
you can be collapsing
she can be collapsing
we can be collapsing
you can be collapsing
they can be collapsing	I can have collapsed
you can have collapsed
she can have collapsed
we can have collapsed
you can have collapsed
they can have collapsed	I can have been collapsing
you can have been collapsing
she can have been collapsing
we can have been collapsing
you can have been collapsing
they can have been collapsing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot collapse
you cannot collapse
she cannot collapse
we cannot collapse
you cannot collapse
they cannot collapse 	I cannot be collapsing
you cannot be collapsing
she cannot be collapsing
we cannot be collapsing
you cannot be collapsing
they cannot be collapsing	I cannot have collapsed
you cannot have collapsed
she cannot have collapsed
we cannot have collapsed
you cannot have collapsed
they cannot have collapsed	I cannot have been collapsing
you cannot have been collapsing
she cannot have been collapsing
we cannot have been collapsing
you cannot have been collapsing
they cannot have been collapsing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I collapse?
can you collapse?
can she collapse?
can we collapse?
can you collapse?
can they collapse? 	can I be collapsing?
can you be collapsing?
can she be collapsing?
can we be collapsing?
can you be collapsing?
can they be collapsing? 	can I have collapsed?
can you have collapsed?
can she have collapsed?
can we have collapsed?
can you have collapsed?
can they have collapsed? 	can I have been collapsing?
can you have been collapsing?
can she have been collapsing?
can we have been collapsing?
can you have been collapsing?
can they have been collapsing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not collapse?
can you not collapse?
can she not collapse?
can we not collapse?
can you not collapse?
can they not collapse? 	can I not be collapsing?
can you not be collapsing?
can she not be collapsing?
can we not be collapsing?
can you not be collapsing?
can they not be collapsing? 	can I not have collapsed?
can you not have collapsed?
can she not have collapsed?
can we not have collapsed?
can you not have collapsed?
can they not have collapsed? 	can I not have been collapsing?
can you not have been collapsing?
can she not have been collapsing?
can we not have been collapsing?
can you not have been collapsing?
can they not have been collapsing?