I may de-ice you may de-ice he may de-ice we may de-ice you may de-ice they may de-ice
V-ing form
I may be de-icing you may be de-icing he may be de-icing we may be de-icing you may be de-icing they may be de-icing
Perfect
I may have de-iced you may have de-iced he may have de-iced we may have de-iced you may have de-iced they may have de-iced
V-ing perfect
I may have been de-icing you may have been de-icing he may have been de-icing we may have been de-icing you may have been de-icing they may have been de-icing
Negation
Simple form
I may not de-ice you may not de-ice he may not de-ice we may not de-ice you may not de-ice they may not de-ice
V-ing form
I may not be de-icing you may not be de-icing he may not be de-icing we may not be de-icing you may not be de-icing they may not be de-icing
Perfect
I may not have de-iced you may not have de-iced he may not have de-iced we may not have de-iced you may not have de-iced they may not have de-iced
V-ing perfect
I may not have been de-icing you may not have been de-icing he may not have been de-icing we may not have been de-icing you may not have been de-icing they may not have been de-icing
Interrogative form
Simple form
may I de-ice? may you de-ice? may he de-ice? may we de-ice? may you de-ice? may they de-ice?
V-ing form
may I be de-icing? may you be de-icing? may he be de-icing? may we be de-icing? may you be de-icing? may they be de-icing?
Perfect
may I have de-iced? may you have de-iced? may he have de-iced? may we have de-iced? may you have de-iced? may they have de-iced?
V-ing perfect
may I have been de-icing? may you have been de-icing? may he have been de-icing? may we have been de-icing? may you have been de-icing? may they have been de-icing?
Interro-negative form
Simple form
may I not de-ice? may you not de-ice? may he not de-ice? may we not de-ice? may you not de-ice? may they not de-ice?
V-ing form
may I not be de-icing? may you not be de-icing? may he not be de-icing? may we not be de-icing? may you not be de-icing? may they not be de-icing?
Perfect
may I not have de-iced? may you not have de-iced? may he not have de-iced? may we not have de-iced? may you not have de-iced? may they not have de-iced?
V-ing perfect
may I not have been de-icing? may you not have been de-icing? may he not have been de-icing? may we not have been de-icing? may you not have been de-icing? may they not have been de-icing?