I can backsolve you can backsolve she can backsolve we can backsolve you can backsolve they can backsolve
Form mit V-ing
I can be backsolving you can be backsolving she can be backsolving we can be backsolving you can be backsolving they can be backsolving
Perfekt
I can have backsolved you can have backsolved she can have backsolved we can have backsolved you can have backsolved they can have backsolved
Perfekt mit V-ing
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
Negation
Einfache Form
I cannot backsolve you cannot backsolve she cannot backsolve we cannot backsolve you cannot backsolve they cannot backsolve
Form mit V-ing
I cannot be backsolving you cannot be backsolving she cannot be backsolving we cannot be backsolving you cannot be backsolving they cannot be backsolving
Perfekt
I cannot have backsolved you cannot have backsolved she cannot have backsolved we cannot have backsolved you cannot have backsolved they cannot have backsolved
Perfekt mit V-ing
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
Fragende Form
Einfache Form
can I backsolve? can you backsolve? can she backsolve? can we backsolve? can you backsolve? can they backsolve?
Form mit V-ing
can I be backsolving? can you be backsolving? can she be backsolving? can we be backsolving? can you be backsolving? can they be backsolving?
Perfekt
can I have backsolved? can you have backsolved? can she have backsolved? can we have backsolved? can you have backsolved? can they have backsolved?
Perfekt mit V-ing
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?
Fragende Negation Form
Einfache Form
can I not backsolve? can you not backsolve? can she not backsolve? can we not backsolve? can you not backsolve? can they not backsolve?
Form mit V-ing
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?
Perfekt
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?
Perfekt mit V-ing
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?