may preplan
Regular verb: preplan - preplaned- preplaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may preplan
you may preplan
she may preplan
we may preplan
you may preplan
they may preplan 	I may be preplaning
you may be preplaning
she may be preplaning
we may be preplaning
you may be preplaning
they may be preplaning	I may have preplaned
you may have preplaned
she may have preplaned
we may have preplaned
you may have preplaned
they may have preplaned	I may have been preplaning
you may have been preplaning
she may have been preplaning
we may have been preplaning
you may have been preplaning
they may have been preplaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not preplan
you may not preplan
she may not preplan
we may not preplan
you may not preplan
they may not preplan 	I may not be preplaning
you may not be preplaning
she may not be preplaning
we may not be preplaning
you may not be preplaning
they may not be preplaning	I may not have preplaned
you may not have preplaned
she may not have preplaned
we may not have preplaned
you may not have preplaned
they may not have preplaned	I may not have been preplaning
you may not have been preplaning
she may not have been preplaning
we may not have been preplaning
you may not have been preplaning
they may not have been preplaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I preplan?
may you preplan?
may she preplan?
may we preplan?
may you preplan?
may they preplan? 	may I be preplaning?
may you be preplaning?
may she be preplaning?
may we be preplaning?
may you be preplaning?
may they be preplaning? 	may I have preplaned?
may you have preplaned?
may she have preplaned?
may we have preplaned?
may you have preplaned?
may they have preplaned? 	may I have been preplaning?
may you have been preplaning?
may she have been preplaning?
may we have been preplaning?
may you have been preplaning?
may they have been preplaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not preplan?
may you not preplan?
may she not preplan?
may we not preplan?
may you not preplan?
may they not preplan? 	may I not be preplaning?
may you not be preplaning?
may she not be preplaning?
may we not be preplaning?
may you not be preplaning?
may they not be preplaning? 	may I not have preplaned?
may you not have preplaned?
may she not have preplaned?
may we not have preplaned?
may you not have preplaned?
may they not have preplaned? 	may I not have been preplaning?
may you not have been preplaning?
may she not have been preplaning?
may we not have been preplaning?
may you not have been preplaning?
may they not have been preplaning?