can callus
Verbo regular: callus - callused- callused

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can callus
you can callus
he can callus
we can callus
you can callus
they can callus 	I can be callusing
you can be callusing
he can be callusing
we can be callusing
you can be callusing
they can be callusing	I can have callused
you can have callused
he can have callused
we can have callused
you can have callused
they can have callused	I can have been callusing
you can have been callusing
he can have been callusing
we can have been callusing
you can have been callusing
they can have been callusing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot callus
you cannot callus
he cannot callus
we cannot callus
you cannot callus
they cannot callus 	I cannot be callusing
you cannot be callusing
he cannot be callusing
we cannot be callusing
you cannot be callusing
they cannot be callusing	I cannot have callused
you cannot have callused
he cannot have callused
we cannot have callused
you cannot have callused
they cannot have callused	I cannot have been callusing
you cannot have been callusing
he cannot have been callusing
we cannot have been callusing
you cannot have been callusing
they cannot have been callusing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I callus?
can you callus?
can he callus?
can we callus?
can you callus?
can they callus? 	can I be callusing?
can you be callusing?
can he be callusing?
can we be callusing?
can you be callusing?
can they be callusing? 	can I have callused?
can you have callused?
can he have callused?
can we have callused?
can you have callused?
can they have callused? 	can I have been callusing?
can you have been callusing?
can he have been callusing?
can we have been callusing?
can you have been callusing?
can they have been callusing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not callus?
can you not callus?
can he not callus?
can we not callus?
can you not callus?
can they not callus? 	can I not be callusing?
can you not be callusing?
can he not be callusing?
can we not be callusing?
can you not be callusing?
can they not be callusing? 	can I not have callused?
can you not have callused?
can he not have callused?
can we not have callused?
can you not have callused?
can they not have callused? 	can I not have been callusing?
can you not have been callusing?
can he not have been callusing?
can we not have been callusing?
can you not have been callusing?
can they not have been callusing?