Conjugaison du verbe anglais
MUST BACKSOLVE

Verbe régulier : backsolve - backsolved - backsolved

Affirmation

Forme simple	Forme en V-ing
I must backsolve you must backsolve he must backsolve we must backsolve you must backsolve they must backsolve	I must be backsolving you must be backsolving he must be backsolving we must be backsolving you must be backsolving they must be backsolving
Perfect	Perfect en V-ing
I must have backsolved you must have backsolved he must have backsolved we must have backsolved you must have backsolved they must have backsolved	I must have been backsolving you must have been backsolving he must have been backsolving we must have been backsolving you must have been backsolving they must have been backsolving

Négation

Forme simple	Forme en V-ing
I must not backsolve you must not backsolve he must not backsolve we must not backsolve you must not backsolve they must not backsolve	I must not be backsolving you must not be backsolving he must not be backsolving we must not be backsolving you must not be backsolving they must not be backsolving
Perfect	Perfect en V-ing
I must not have backsolved you must not have backsolved he must not have backsolved we must not have backsolved you must not have backsolved they must not have backsolved	I must not have been backsolving you must not have been backsolving he must not have been backsolving we must not have been backsolving you must not have been backsolving they must not have been backsolving

Forme interrogative

Forme simple	Forme en V-ing
must I backsolve? must you backsolve? must he backsolve? must we backsolve? must you backsolve? must they backsolve?	must I be backsolving? must you be backsolving? must he be backsolving? must we be backsolving? must you be backsolving? must they be backsolving?
Perfect	Perfect en V-ing
must I have backsolved? must you have backsolved? must he have backsolved? must we have backsolved? must you have backsolved? must they have backsolved?	must I have been backsolving? must you have been backsolving? must he have been backsolving? must we have been backsolving? must you have been backsolving? must they have been backsolving?

Forme interro-négative

Forme simple	Forme en V-ing
must I not backsolve? must you not backsolve? must he not backsolve? must we not backsolve? must you not backsolve? must they not backsolve?	must I not be backsolving? must you not be backsolving? must he not be backsolving? must we not be backsolving? must you not be backsolving? must they not be backsolving?
Perfect	Perfect en V-ing
must I not have backsolved? must you not have backsolved? must he not have backsolved? must we not have backsolved? must you not have backsolved? must they not have backsolved?	must I not have been backsolving? must you not have been backsolving? must he not have been backsolving? must we not have been backsolving? must you not have been backsolving? must they not have been backsolving?