I may append you may append he may append we may append you may append they may append
V-ing form
I may be appending you may be appending he may be appending we may be appending you may be appending they may be appending
Perfect
I may have appended you may have appended he may have appended we may have appended you may have appended they may have appended
V-ing perfect
I may have been appending you may have been appending he may have been appending we may have been appending you may have been appending they may have been appending
Negation
Simple form
I may not append you may not append he may not append we may not append you may not append they may not append
V-ing form
I may not be appending you may not be appending he may not be appending we may not be appending you may not be appending they may not be appending
Perfect
I may not have appended you may not have appended he may not have appended we may not have appended you may not have appended they may not have appended
V-ing perfect
I may not have been appending you may not have been appending he may not have been appending we may not have been appending you may not have been appending they may not have been appending
Interrogative form
Simple form
may I append? may you append? may he append? may we append? may you append? may they append?
V-ing form
may I be appending? may you be appending? may he be appending? may we be appending? may you be appending? may they be appending?
Perfect
may I have appended? may you have appended? may he have appended? may we have appended? may you have appended? may they have appended?
V-ing perfect
may I have been appending? may you have been appending? may he have been appending? may we have been appending? may you have been appending? may they have been appending?
Interro-negative form
Simple form
may I not append? may you not append? may he not append? may we not append? may you not append? may they not append?
V-ing form
may I not be appending? may you not be appending? may he not be appending? may we not be appending? may you not be appending? may they not be appending?
Perfect
may I not have appended? may you not have appended? may he not have appended? may we not have appended? may you not have appended? may they not have appended?
V-ing perfect
may I not have been appending? may you not have been appending? may he not have been appending? may we not have been appending? may you not have been appending? may they not have been appending?