I may winnow you may winnow he may winnow we may winnow you may winnow they may winnow
V-ing form
I may be winnowing you may be winnowing he may be winnowing we may be winnowing you may be winnowing they may be winnowing
Perfect
I may have winnowed you may have winnowed he may have winnowed we may have winnowed you may have winnowed they may have winnowed
V-ing perfect
I may have been winnowing you may have been winnowing he may have been winnowing we may have been winnowing you may have been winnowing they may have been winnowing
Negation
Simple form
I may not winnow you may not winnow he may not winnow we may not winnow you may not winnow they may not winnow
V-ing form
I may not be winnowing you may not be winnowing he may not be winnowing we may not be winnowing you may not be winnowing they may not be winnowing
Perfect
I may not have winnowed you may not have winnowed he may not have winnowed we may not have winnowed you may not have winnowed they may not have winnowed
V-ing perfect
I may not have been winnowing you may not have been winnowing he may not have been winnowing we may not have been winnowing you may not have been winnowing they may not have been winnowing
Interrogative form
Simple form
may I winnow? may you winnow? may he winnow? may we winnow? may you winnow? may they winnow?
V-ing form
may I be winnowing? may you be winnowing? may he be winnowing? may we be winnowing? may you be winnowing? may they be winnowing?
Perfect
may I have winnowed? may you have winnowed? may he have winnowed? may we have winnowed? may you have winnowed? may they have winnowed?
V-ing perfect
may I have been winnowing? may you have been winnowing? may he have been winnowing? may we have been winnowing? may you have been winnowing? may they have been winnowing?
Interro-negative form
Simple form
may I not winnow? may you not winnow? may he not winnow? may we not winnow? may you not winnow? may they not winnow?
V-ing form
may I not be winnowing? may you not be winnowing? may he not be winnowing? may we not be winnowing? may you not be winnowing? may they not be winnowing?
Perfect
may I not have winnowed? may you not have winnowed? may he not have winnowed? may we not have winnowed? may you not have winnowed? may they not have winnowed?
V-ing perfect
may I not have been winnowing? may you not have been winnowing? may he not have been winnowing? may we not have been winnowing? may you not have been winnowing? may they not have been winnowing?