I may abseil you may abseil he may abseil we may abseil you may abseil they may abseil
V-ing form
I may be abseiling you may be abseiling he may be abseiling we may be abseiling you may be abseiling they may be abseiling
Perfect
I may have abseiled you may have abseiled he may have abseiled we may have abseiled you may have abseiled they may have abseiled
V-ing perfect
I may have been abseiling you may have been abseiling he may have been abseiling we may have been abseiling you may have been abseiling they may have been abseiling
Negation
Simple form
I may not abseil you may not abseil he may not abseil we may not abseil you may not abseil they may not abseil
V-ing form
I may not be abseiling you may not be abseiling he may not be abseiling we may not be abseiling you may not be abseiling they may not be abseiling
Perfect
I may not have abseiled you may not have abseiled he may not have abseiled we may not have abseiled you may not have abseiled they may not have abseiled
V-ing perfect
I may not have been abseiling you may not have been abseiling he may not have been abseiling we may not have been abseiling you may not have been abseiling they may not have been abseiling
Interrogative form
Simple form
may I abseil? may you abseil? may he abseil? may we abseil? may you abseil? may they abseil?
V-ing form
may I be abseiling? may you be abseiling? may he be abseiling? may we be abseiling? may you be abseiling? may they be abseiling?
Perfect
may I have abseiled? may you have abseiled? may he have abseiled? may we have abseiled? may you have abseiled? may they have abseiled?
V-ing perfect
may I have been abseiling? may you have been abseiling? may he have been abseiling? may we have been abseiling? may you have been abseiling? may they have been abseiling?
Interro-negative form
Simple form
may I not abseil? may you not abseil? may he not abseil? may we not abseil? may you not abseil? may they not abseil?
V-ing form
may I not be abseiling? may you not be abseiling? may he not be abseiling? may we not be abseiling? may you not be abseiling? may they not be abseiling?
Perfect
may I not have abseiled? may you not have abseiled? may he not have abseiled? may we not have abseiled? may you not have abseiled? may they not have abseiled?
V-ing perfect
may I not have been abseiling? may you not have been abseiling? may he not have been abseiling? may we not have been abseiling? may you not have been abseiling? may they not have been abseiling?