must presolve
Regular verb: presolve - presolved- presolved

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

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

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

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