I may whistle you may whistle she may whistle we may whistle you may whistle they may whistle
V-ing form
I may be whistling you may be whistling she may be whistling we may be whistling you may be whistling they may be whistling
Perfect
I may have whistled you may have whistled she may have whistled we may have whistled you may have whistled they may have whistled
V-ing perfect
I may have been whistling you may have been whistling she may have been whistling we may have been whistling you may have been whistling they may have been whistling
Negation
Simple form
I may not whistle you may not whistle she may not whistle we may not whistle you may not whistle they may not whistle
V-ing form
I may not be whistling you may not be whistling she may not be whistling we may not be whistling you may not be whistling they may not be whistling
Perfect
I may not have whistled you may not have whistled she may not have whistled we may not have whistled you may not have whistled they may not have whistled
V-ing perfect
I may not have been whistling you may not have been whistling she may not have been whistling we may not have been whistling you may not have been whistling they may not have been whistling
Interrogative form
Simple form
may I whistle? may you whistle? may she whistle? may we whistle? may you whistle? may they whistle?
V-ing form
may I be whistling? may you be whistling? may she be whistling? may we be whistling? may you be whistling? may they be whistling?
Perfect
may I have whistled? may you have whistled? may she have whistled? may we have whistled? may you have whistled? may they have whistled?
V-ing perfect
may I have been whistling? may you have been whistling? may she have been whistling? may we have been whistling? may you have been whistling? may they have been whistling?
Interro-negative form
Simple form
may I not whistle? may you not whistle? may she not whistle? may we not whistle? may you not whistle? may they not whistle?
V-ing form
may I not be whistling? may you not be whistling? may she not be whistling? may we not be whistling? may you not be whistling? may they not be whistling?
Perfect
may I not have whistled? may you not have whistled? may she not have whistled? may we not have whistled? may you not have whistled? may they not have whistled?
V-ing perfect
may I not have been whistling? may you not have been whistling? may she not have been whistling? may we not have been whistling? may you not have been whistling? may they not have been whistling?