can solve
Verbo regular: solve - solved- solved

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can solve
you can solve
she can solve
we can solve
you can solve
they can solve 	I can be solving
you can be solving
she can be solving
we can be solving
you can be solving
they can be solving	I can have solved
you can have solved
she can have solved
we can have solved
you can have solved
they can have solved	I can have been solving
you can have been solving
she can have been solving
we can have been solving
you can have been solving
they can have been solving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot solve
you cannot solve
she cannot solve
we cannot solve
you cannot solve
they cannot solve 	I cannot be solving
you cannot be solving
she cannot be solving
we cannot be solving
you cannot be solving
they cannot be solving	I cannot have solved
you cannot have solved
she cannot have solved
we cannot have solved
you cannot have solved
they cannot have solved	I cannot have been solving
you cannot have been solving
she cannot have been solving
we cannot have been solving
you cannot have been solving
they cannot have been solving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I solve?
can you solve?
can she solve?
can we solve?
can you solve?
can they solve? 	can I be solving?
can you be solving?
can she be solving?
can we be solving?
can you be solving?
can they be solving? 	can I have solved?
can you have solved?
can she have solved?
can we have solved?
can you have solved?
can they have solved? 	can I have been solving?
can you have been solving?
can she have been solving?
can we have been solving?
can you have been solving?
can they have been solving? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not solve?
can you not solve?
can she not solve?
can we not solve?
can you not solve?
can they not solve? 	can I not be solving?
can you not be solving?
can she not be solving?
can we not be solving?
can you not be solving?
can they not be solving? 	can I not have solved?
can you not have solved?
can she not have solved?
can we not have solved?
can you not have solved?
can they not have solved? 	can I not have been solving?
can you not have been solving?
can she not have been solving?
can we not have been solving?
can you not have been solving?
can they not have been solving?