I may giggle you may giggle she may giggle we may giggle you may giggle they may giggle
V-ing form
I may be giggling you may be giggling she may be giggling we may be giggling you may be giggling they may be giggling
Perfect
I may have giggled you may have giggled she may have giggled we may have giggled you may have giggled they may have giggled
V-ing perfect
I may have been giggling you may have been giggling she may have been giggling we may have been giggling you may have been giggling they may have been giggling
Negation
Simple form
I may not giggle you may not giggle she may not giggle we may not giggle you may not giggle they may not giggle
V-ing form
I may not be giggling you may not be giggling she may not be giggling we may not be giggling you may not be giggling they may not be giggling
Perfect
I may not have giggled you may not have giggled she may not have giggled we may not have giggled you may not have giggled they may not have giggled
V-ing perfect
I may not have been giggling you may not have been giggling she may not have been giggling we may not have been giggling you may not have been giggling they may not have been giggling
Interrogative form
Simple form
may I giggle? may you giggle? may she giggle? may we giggle? may you giggle? may they giggle?
V-ing form
may I be giggling? may you be giggling? may she be giggling? may we be giggling? may you be giggling? may they be giggling?
Perfect
may I have giggled? may you have giggled? may she have giggled? may we have giggled? may you have giggled? may they have giggled?
V-ing perfect
may I have been giggling? may you have been giggling? may she have been giggling? may we have been giggling? may you have been giggling? may they have been giggling?
Interro-negative form
Simple form
may I not giggle? may you not giggle? may she not giggle? may we not giggle? may you not giggle? may they not giggle?
V-ing form
may I not be giggling? may you not be giggling? may she not be giggling? may we not be giggling? may you not be giggling? may they not be giggling?
Perfect
may I not have giggled? may you not have giggled? may she not have giggled? may we not have giggled? may you not have giggled? may they not have giggled?
V-ing perfect
may I not have been giggling? may you not have been giggling? may she not have been giggling? may we not have been giggling? may you not have been giggling? may they not have been giggling?