I may tend you may tend he may tend we may tend you may tend they may tend
V-ing form
I may be tending you may be tending he may be tending we may be tending you may be tending they may be tending
Perfect
I may have tended you may have tended he may have tended we may have tended you may have tended they may have tended
V-ing perfect
I may have been tending you may have been tending he may have been tending we may have been tending you may have been tending they may have been tending
Negation
Simple form
I may not tend you may not tend he may not tend we may not tend you may not tend they may not tend
V-ing form
I may not be tending you may not be tending he may not be tending we may not be tending you may not be tending they may not be tending
Perfect
I may not have tended you may not have tended he may not have tended we may not have tended you may not have tended they may not have tended
V-ing perfect
I may not have been tending you may not have been tending he may not have been tending we may not have been tending you may not have been tending they may not have been tending
Interrogative form
Simple form
may I tend? may you tend? may he tend? may we tend? may you tend? may they tend?
V-ing form
may I be tending? may you be tending? may he be tending? may we be tending? may you be tending? may they be tending?
Perfect
may I have tended? may you have tended? may he have tended? may we have tended? may you have tended? may they have tended?
V-ing perfect
may I have been tending? may you have been tending? may he have been tending? may we have been tending? may you have been tending? may they have been tending?
Interro-negative form
Simple form
may I not tend? may you not tend? may he not tend? may we not tend? may you not tend? may they not tend?
V-ing form
may I not be tending? may you not be tending? may he not be tending? may we not be tending? may you not be tending? may they not be tending?
Perfect
may I not have tended? may you not have tended? may he not have tended? may we not have tended? may you not have tended? may they not have tended?
V-ing perfect
may I not have been tending? may you not have been tending? may he not have been tending? may we not have been tending? may you not have been tending? may they not have been tending?