can check
Verbo regolare: check - checked- checked

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I can check
you can check
he can check
we can check
you can check
they can check 	I can be checking
you can be checking
he can be checking
we can be checking
you can be checking
they can be checking	I can have checked
you can have checked
he can have checked
we can have checked
you can have checked
they can have checked	I can have been checking
you can have been checking
he can have been checking
we can have been checking
you can have been checking
they can have been checking	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I cannot check
you cannot check
he cannot check
we cannot check
you cannot check
they cannot check 	I cannot be checking
you cannot be checking
he cannot be checking
we cannot be checking
you cannot be checking
they cannot be checking	I cannot have checked
you cannot have checked
he cannot have checked
we cannot have checked
you cannot have checked
they cannot have checked	I cannot have been checking
you cannot have been checking
he cannot have been checking
we cannot have been checking
you cannot have been checking
they cannot have been checking	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I check?
can you check?
can he check?
can we check?
can you check?
can they check? 	can I be checking?
can you be checking?
can he be checking?
can we be checking?
can you be checking?
can they be checking? 	can I have checked?
can you have checked?
can he have checked?
can we have checked?
can you have checked?
can they have checked? 	can I have been checking?
can you have been checking?
can he have been checking?
can we have been checking?
can you have been checking?
can they have been checking? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
can I not check?
can you not check?
can he not check?
can we not check?
can you not check?
can they not check? 	can I not be checking?
can you not be checking?
can he not be checking?
can we not be checking?
can you not be checking?
can they not be checking? 	can I not have checked?
can you not have checked?
can he not have checked?
can we not have checked?
can you not have checked?
can they not have checked? 	can I not have been checking?
can you not have been checking?
can he not have been checking?
can we not have been checking?
can you not have been checking?
can they not have been checking?