I may land you may land he may land we may land you may land they may land
V-ing form
I may be landing you may be landing he may be landing we may be landing you may be landing they may be landing
Perfect
I may have landed you may have landed he may have landed we may have landed you may have landed they may have landed
V-ing perfect
I may have been landing you may have been landing he may have been landing we may have been landing you may have been landing they may have been landing
Negation
Simple form
I may not land you may not land he may not land we may not land you may not land they may not land
V-ing form
I may not be landing you may not be landing he may not be landing we may not be landing you may not be landing they may not be landing
Perfect
I may not have landed you may not have landed he may not have landed we may not have landed you may not have landed they may not have landed
V-ing perfect
I may not have been landing you may not have been landing he may not have been landing we may not have been landing you may not have been landing they may not have been landing
Interrogative form
Simple form
may I land? may you land? may he land? may we land? may you land? may they land?
V-ing form
may I be landing? may you be landing? may he be landing? may we be landing? may you be landing? may they be landing?
Perfect
may I have landed? may you have landed? may he have landed? may we have landed? may you have landed? may they have landed?
V-ing perfect
may I have been landing? may you have been landing? may he have been landing? may we have been landing? may you have been landing? may they have been landing?
Interro-negative form
Simple form
may I not land? may you not land? may he not land? may we not land? may you not land? may they not land?
V-ing form
may I not be landing? may you not be landing? may he not be landing? may we not be landing? may you not be landing? may they not be landing?
Perfect
may I not have landed? may you not have landed? may he not have landed? may we not have landed? may you not have landed? may they not have landed?
V-ing perfect
may I not have been landing? may you not have been landing? may he not have been landing? may we not have been landing? may you not have been landing? may they not have been landing?