I may shuttle you may shuttle he may shuttle we may shuttle you may shuttle they may shuttle
V-ing form
I may be shuttling you may be shuttling he may be shuttling we may be shuttling you may be shuttling they may be shuttling
Perfect
I may have shuttled you may have shuttled he may have shuttled we may have shuttled you may have shuttled they may have shuttled
V-ing perfect
I may have been shuttling you may have been shuttling he may have been shuttling we may have been shuttling you may have been shuttling they may have been shuttling
Negation
Simple form
I may not shuttle you may not shuttle he may not shuttle we may not shuttle you may not shuttle they may not shuttle
V-ing form
I may not be shuttling you may not be shuttling he may not be shuttling we may not be shuttling you may not be shuttling they may not be shuttling
Perfect
I may not have shuttled you may not have shuttled he may not have shuttled we may not have shuttled you may not have shuttled they may not have shuttled
V-ing perfect
I may not have been shuttling you may not have been shuttling he may not have been shuttling we may not have been shuttling you may not have been shuttling they may not have been shuttling
Interrogative form
Simple form
may I shuttle? may you shuttle? may he shuttle? may we shuttle? may you shuttle? may they shuttle?
V-ing form
may I be shuttling? may you be shuttling? may he be shuttling? may we be shuttling? may you be shuttling? may they be shuttling?
Perfect
may I have shuttled? may you have shuttled? may he have shuttled? may we have shuttled? may you have shuttled? may they have shuttled?
V-ing perfect
may I have been shuttling? may you have been shuttling? may he have been shuttling? may we have been shuttling? may you have been shuttling? may they have been shuttling?
Interro-negative form
Simple form
may I not shuttle? may you not shuttle? may he not shuttle? may we not shuttle? may you not shuttle? may they not shuttle?
V-ing form
may I not be shuttling? may you not be shuttling? may he not be shuttling? may we not be shuttling? may you not be shuttling? may they not be shuttling?
Perfect
may I not have shuttled? may you not have shuttled? may he not have shuttled? may we not have shuttled? may you not have shuttled? may they not have shuttled?
V-ing perfect
may I not have been shuttling? may you not have been shuttling? may he not have been shuttling? may we not have been shuttling? may you not have been shuttling? may they not have been shuttling?