I may dial you may dial he may dial we may dial you may dial they may dial
V-ing form
I may be dialling you may be dialling he may be dialling we may be dialling you may be dialling they may be dialling
Perfect
I may have dialled you may have dialled he may have dialled we may have dialled you may have dialled they may have dialled
V-ing perfect
I may have been dialling you may have been dialling he may have been dialling we may have been dialling you may have been dialling they may have been dialling
Negation
Simple form
I may not dial you may not dial he may not dial we may not dial you may not dial they may not dial
V-ing form
I may not be dialling you may not be dialling he may not be dialling we may not be dialling you may not be dialling they may not be dialling
Perfect
I may not have dialled you may not have dialled he may not have dialled we may not have dialled you may not have dialled they may not have dialled
V-ing perfect
I may not have been dialling you may not have been dialling he may not have been dialling we may not have been dialling you may not have been dialling they may not have been dialling
Interrogative form
Simple form
may I dial? may you dial? may he dial? may we dial? may you dial? may they dial?
V-ing form
may I be dialling? may you be dialling? may he be dialling? may we be dialling? may you be dialling? may they be dialling?
Perfect
may I have dialled? may you have dialled? may he have dialled? may we have dialled? may you have dialled? may they have dialled?
V-ing perfect
may I have been dialling? may you have been dialling? may he have been dialling? may we have been dialling? may you have been dialling? may they have been dialling?
Interro-negative form
Simple form
may I not dial? may you not dial? may he not dial? may we not dial? may you not dial? may they not dial?
V-ing form
may I not be dialling? may you not be dialling? may he not be dialling? may we not be dialling? may you not be dialling? may they not be dialling?
Perfect
may I not have dialled? may you not have dialled? may he not have dialled? may we not have dialled? may you not have dialled? may they not have dialled?
V-ing perfect
may I not have been dialling? may you not have been dialling? may he not have been dialling? may we not have been dialling? may you not have been dialling? may they not have been dialling?