English verb conjugation
MAY ENDEAVOUR

Regular verb: endeavour - endeavoured - endeavoured

Affirmation

Simple form	V-ing form
I may endeavour you may endeavour she may endeavour we may endeavour you may endeavour they may endeavour	I may be endeavouring you may be endeavouring she may be endeavouring we may be endeavouring you may be endeavouring they may be endeavouring
Perfect	V-ing perfect
I may have endeavoured you may have endeavoured she may have endeavoured we may have endeavoured you may have endeavoured they may have endeavoured	I may have been endeavouring you may have been endeavouring she may have been endeavouring we may have been endeavouring you may have been endeavouring they may have been endeavouring

Negation

Simple form	V-ing form
I may not endeavour you may not endeavour she may not endeavour we may not endeavour you may not endeavour they may not endeavour	I may not be endeavouring you may not be endeavouring she may not be endeavouring we may not be endeavouring you may not be endeavouring they may not be endeavouring
Perfect	V-ing perfect
I may not have endeavoured you may not have endeavoured she may not have endeavoured we may not have endeavoured you may not have endeavoured they may not have endeavoured	I may not have been endeavouring you may not have been endeavouring she may not have been endeavouring we may not have been endeavouring you may not have been endeavouring they may not have been endeavouring

Interrogative form

Simple form	V-ing form
may I endeavour? may you endeavour? may she endeavour? may we endeavour? may you endeavour? may they endeavour?	may I be endeavouring? may you be endeavouring? may she be endeavouring? may we be endeavouring? may you be endeavouring? may they be endeavouring?
Perfect	V-ing perfect
may I have endeavoured? may you have endeavoured? may she have endeavoured? may we have endeavoured? may you have endeavoured? may they have endeavoured?	may I have been endeavouring? may you have been endeavouring? may she have been endeavouring? may we have been endeavouring? may you have been endeavouring? may they have been endeavouring?

Interro-negative form

Simple form	V-ing form
may I not endeavour? may you not endeavour? may she not endeavour? may we not endeavour? may you not endeavour? may they not endeavour?	may I not be endeavouring? may you not be endeavouring? may she not be endeavouring? may we not be endeavouring? may you not be endeavouring? may they not be endeavouring?
Perfect	V-ing perfect
may I not have endeavoured? may you not have endeavoured? may she not have endeavoured? may we not have endeavoured? may you not have endeavoured? may they not have endeavoured?	may I not have been endeavouring? may you not have been endeavouring? may she not have been endeavouring? may we not have been endeavouring? may you not have been endeavouring? may they not have been endeavouring?