English verb conjugation
MAY CHECKMATE

Regular verb: checkmate - checkmated - checkmated

Affirmation

Simple form	V-ing form
I may checkmate you may checkmate she may checkmate we may checkmate you may checkmate they may checkmate	I may be checkmating you may be checkmating she may be checkmating we may be checkmating you may be checkmating they may be checkmating
Perfect	V-ing perfect
I may have checkmated you may have checkmated she may have checkmated we may have checkmated you may have checkmated they may have checkmated	I may have been checkmating you may have been checkmating she may have been checkmating we may have been checkmating you may have been checkmating they may have been checkmating

Negation

Simple form	V-ing form
I may not checkmate you may not checkmate she may not checkmate we may not checkmate you may not checkmate they may not checkmate	I may not be checkmating you may not be checkmating she may not be checkmating we may not be checkmating you may not be checkmating they may not be checkmating
Perfect	V-ing perfect
I may not have checkmated you may not have checkmated she may not have checkmated we may not have checkmated you may not have checkmated they may not have checkmated	I may not have been checkmating you may not have been checkmating she may not have been checkmating we may not have been checkmating you may not have been checkmating they may not have been checkmating

Interrogative form

Simple form	V-ing form
may I checkmate? may you checkmate? may she checkmate? may we checkmate? may you checkmate? may they checkmate?	may I be checkmating? may you be checkmating? may she be checkmating? may we be checkmating? may you be checkmating? may they be checkmating?
Perfect	V-ing perfect
may I have checkmated? may you have checkmated? may she have checkmated? may we have checkmated? may you have checkmated? may they have checkmated?	may I have been checkmating? may you have been checkmating? may she have been checkmating? may we have been checkmating? may you have been checkmating? may they have been checkmating?

Interro-negative form

Simple form	V-ing form
may I not checkmate? may you not checkmate? may she not checkmate? may we not checkmate? may you not checkmate? may they not checkmate?	may I not be checkmating? may you not be checkmating? may she not be checkmating? may we not be checkmating? may you not be checkmating? may they not be checkmating?
Perfect	V-ing perfect
may I not have checkmated? may you not have checkmated? may she not have checkmated? may we not have checkmated? may you not have checkmated? may they not have checkmated?	may I not have been checkmating? may you not have been checkmating? may she not have been checkmating? may we not have been checkmating? may you not have been checkmating? may they not have been checkmating?