English verb conjugation
CAN PRESOLVE

Regular verb: presolve - presolved - presolved

Affirmation

Simple form	V-ing form
I can presolve you can presolve he can presolve we can presolve you can presolve they can presolve	I can be presolving you can be presolving he can be presolving we can be presolving you can be presolving they can be presolving
Perfect	V-ing perfect
I can have presolved you can have presolved he can have presolved we can have presolved you can have presolved they can have presolved	I can have been presolving you can have been presolving he can have been presolving we can have been presolving you can have been presolving they can have been presolving

Negation

Simple form	V-ing form
I cannot presolve you cannot presolve he cannot presolve we cannot presolve you cannot presolve they cannot presolve	I cannot be presolving you cannot be presolving he cannot be presolving we cannot be presolving you cannot be presolving they cannot be presolving
Perfect	V-ing perfect
I cannot have presolved you cannot have presolved he cannot have presolved we cannot have presolved you cannot have presolved they cannot have presolved	I cannot have been presolving you cannot have been presolving he cannot have been presolving we cannot have been presolving you cannot have been presolving they cannot have been presolving

Interrogative form

Simple form	V-ing form
can I presolve? can you presolve? can he presolve? can we presolve? can you presolve? can they presolve?	can I be presolving? can you be presolving? can he be presolving? can we be presolving? can you be presolving? can they be presolving?
Perfect	V-ing perfect
can I have presolved? can you have presolved? can he have presolved? can we have presolved? can you have presolved? can they have presolved?	can I have been presolving? can you have been presolving? can he have been presolving? can we have been presolving? can you have been presolving? can they have been presolving?

Interro-negative form

Simple form	V-ing form
can I not presolve? can you not presolve? can he not presolve? can we not presolve? can you not presolve? can they not presolve?	can I not be presolving? can you not be presolving? can he not be presolving? can we not be presolving? can you not be presolving? can they not be presolving?
Perfect	V-ing perfect
can I not have presolved? can you not have presolved? can he not have presolved? can we not have presolved? can you not have presolved? can they not have presolved?	can I not have been presolving? can you not have been presolving? can he not have been presolving? can we not have been presolving? can you not have been presolving? can they not have been presolving?