can understand
Verbo irregolare: understand - understood- understood

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can understand
you can understand
she can understand
we can understand
you can understand
they can understand 	I can be understanding
you can be understanding
she can be understanding
we can be understanding
you can be understanding
they can be understanding	I can have understood
you can have understood
she can have understood
we can have understood
you can have understood
they can have understood	I can have been understanding
you can have been understanding
she can have been understanding
we can have been understanding
you can have been understanding
they can have been understanding	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot understand
you cannot understand
she cannot understand
we cannot understand
you cannot understand
they cannot understand 	I cannot be understanding
you cannot be understanding
she cannot be understanding
we cannot be understanding
you cannot be understanding
they cannot be understanding	I cannot have understood
you cannot have understood
she cannot have understood
we cannot have understood
you cannot have understood
they cannot have understood	I cannot have been understanding
you cannot have been understanding
she cannot have been understanding
we cannot have been understanding
you cannot have been understanding
they cannot have been understanding	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I understand?
can you understand?
can she understand?
can we understand?
can you understand?
can they understand? 	can I be understanding?
can you be understanding?
can she be understanding?
can we be understanding?
can you be understanding?
can they be understanding? 	can I have understood?
can you have understood?
can she have understood?
can we have understood?
can you have understood?
can they have understood? 	can I have been understanding?
can you have been understanding?
can she have been understanding?
can we have been understanding?
can you have been understanding?
can they have been understanding? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not understand?
can you not understand?
can she not understand?
can we not understand?
can you not understand?
can they not understand? 	can I not be understanding?
can you not be understanding?
can she not be understanding?
can we not be understanding?
can you not be understanding?
can they not be understanding? 	can I not have understood?
can you not have understood?
can she not have understood?
can we not have understood?
can you not have understood?
can they not have understood? 	can I not have been understanding?
can you not have been understanding?
can she not have been understanding?
can we not have been understanding?
can you not have been understanding?
can they not have been understanding?