can backsolve
Verbe régulier : backsolve - backsolved- backsolved

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can backsolve
you can backsolve
she can backsolve
we can backsolve
you can backsolve
they can backsolve 	I can be backsolving
you can be backsolving
she can be backsolving
we can be backsolving
you can be backsolving
they can be backsolving	I can have backsolved
you can have backsolved
she can have backsolved
we can have backsolved
you can have backsolved
they can have backsolved	I can have been backsolving
you can have been backsolving
she can have been backsolving
we can have been backsolving
you can have been backsolving
they can have been backsolving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot backsolve
you cannot backsolve
she cannot backsolve
we cannot backsolve
you cannot backsolve
they cannot backsolve 	I cannot be backsolving
you cannot be backsolving
she cannot be backsolving
we cannot be backsolving
you cannot be backsolving
they cannot be backsolving	I cannot have backsolved
you cannot have backsolved
she cannot have backsolved
we cannot have backsolved
you cannot have backsolved
they cannot have backsolved	I cannot have been backsolving
you cannot have been backsolving
she cannot have been backsolving
we cannot have been backsolving
you cannot have been backsolving
they cannot have been backsolving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I backsolve?
can you backsolve?
can she backsolve?
can we backsolve?
can you backsolve?
can they backsolve? 	can I be backsolving?
can you be backsolving?
can she be backsolving?
can we be backsolving?
can you be backsolving?
can they be backsolving? 	can I have backsolved?
can you have backsolved?
can she have backsolved?
can we have backsolved?
can you have backsolved?
can they have backsolved? 	can I have been backsolving?
can you have been backsolving?
can she have been backsolving?
can we have been backsolving?
can you have been backsolving?
can they have been backsolving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not backsolve?
can you not backsolve?
can she not backsolve?
can we not backsolve?
can you not backsolve?
can they not backsolve? 	can I not be backsolving?
can you not be backsolving?
can she not be backsolving?
can we not be backsolving?
can you not be backsolving?
can they not be backsolving? 	can I not have backsolved?
can you not have backsolved?
can she not have backsolved?
can we not have backsolved?
can you not have backsolved?
can they not have backsolved? 	can I not have been backsolving?
can you not have been backsolving?
can she not have been backsolving?
can we not have been backsolving?
can you not have been backsolving?
can they not have been backsolving?