English verb conjugation
MAY SLACKEN

Regular verb: slacken - slackened - slackened

Affirmation

Simple form	V-ing form
I may slacken you may slacken he may slacken we may slacken you may slacken they may slacken	I may be slackening you may be slackening he may be slackening we may be slackening you may be slackening they may be slackening
Perfect	V-ing perfect
I may have slackened you may have slackened he may have slackened we may have slackened you may have slackened they may have slackened	I may have been slackening you may have been slackening he may have been slackening we may have been slackening you may have been slackening they may have been slackening

Negation

Simple form	V-ing form
I may not slacken you may not slacken he may not slacken we may not slacken you may not slacken they may not slacken	I may not be slackening you may not be slackening he may not be slackening we may not be slackening you may not be slackening they may not be slackening
Perfect	V-ing perfect
I may not have slackened you may not have slackened he may not have slackened we may not have slackened you may not have slackened they may not have slackened	I may not have been slackening you may not have been slackening he may not have been slackening we may not have been slackening you may not have been slackening they may not have been slackening

Interrogative form

Simple form	V-ing form
may I slacken? may you slacken? may he slacken? may we slacken? may you slacken? may they slacken?	may I be slackening? may you be slackening? may he be slackening? may we be slackening? may you be slackening? may they be slackening?
Perfect	V-ing perfect
may I have slackened? may you have slackened? may he have slackened? may we have slackened? may you have slackened? may they have slackened?	may I have been slackening? may you have been slackening? may he have been slackening? may we have been slackening? may you have been slackening? may they have been slackening?

Interro-negative form

Simple form	V-ing form
may I not slacken? may you not slacken? may he not slacken? may we not slacken? may you not slacken? may they not slacken?	may I not be slackening? may you not be slackening? may he not be slackening? may we not be slackening? may you not be slackening? may they not be slackening?
Perfect	V-ing perfect
may I not have slackened? may you not have slackened? may he not have slackened? may we not have slackened? may you not have slackened? may they not have slackened?	may I not have been slackening? may you not have been slackening? may he not have been slackening? may we not have been slackening? may you not have been slackening? may they not have been slackening?