English verb conjugation
MAY PROP

Regular verb: prop - propped - propped

Affirmation

Simple form	V-ing form
I may prop you may prop he may prop we may prop you may prop they may prop	I may be propping you may be propping he may be propping we may be propping you may be propping they may be propping
Perfect	V-ing perfect
I may have propped you may have propped he may have propped we may have propped you may have propped they may have propped	I may have been propping you may have been propping he may have been propping we may have been propping you may have been propping they may have been propping

Negation

Simple form	V-ing form
I may not prop you may not prop he may not prop we may not prop you may not prop they may not prop	I may not be propping you may not be propping he may not be propping we may not be propping you may not be propping they may not be propping
Perfect	V-ing perfect
I may not have propped you may not have propped he may not have propped we may not have propped you may not have propped they may not have propped	I may not have been propping you may not have been propping he may not have been propping we may not have been propping you may not have been propping they may not have been propping

Interrogative form

Simple form	V-ing form
may I prop? may you prop? may he prop? may we prop? may you prop? may they prop?	may I be propping? may you be propping? may he be propping? may we be propping? may you be propping? may they be propping?
Perfect	V-ing perfect
may I have propped? may you have propped? may he have propped? may we have propped? may you have propped? may they have propped?	may I have been propping? may you have been propping? may he have been propping? may we have been propping? may you have been propping? may they have been propping?

Interro-negative form

Simple form	V-ing form
may I not prop? may you not prop? may he not prop? may we not prop? may you not prop? may they not prop?	may I not be propping? may you not be propping? may he not be propping? may we not be propping? may you not be propping? may they not be propping?
Perfect	V-ing perfect
may I not have propped? may you not have propped? may he not have propped? may we not have propped? may you not have propped? may they not have propped?	may I not have been propping? may you not have been propping? may he not have been propping? may we not have been propping? may you not have been propping? may they not have been propping?