may peek
Regular verb: peek - peeked- peeked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may peek
you may peek
he may peek
we may peek
you may peek
they may peek 	I may be peeking
you may be peeking
he may be peeking
we may be peeking
you may be peeking
they may be peeking	I may have peeked
you may have peeked
he may have peeked
we may have peeked
you may have peeked
they may have peeked	I may have been peeking
you may have been peeking
he may have been peeking
we may have been peeking
you may have been peeking
they may have been peeking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't peek
you mayn't peek
he mayn't peek
we mayn't peek
you mayn't peek
they mayn't peek 	I mayn't be peeking
you mayn't be peeking
he mayn't be peeking
we mayn't be peeking
you mayn't be peeking
they mayn't be peeking	I mayn't have peeked
you mayn't have peeked
he mayn't have peeked
we mayn't have peeked
you mayn't have peeked
they mayn't have peeked	I mayn't have been peeking
you mayn't have been peeking
he mayn't have been peeking
we mayn't have been peeking
you mayn't have been peeking
they mayn't have been peeking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I peek?
may you peek?
may he peek?
may we peek?
may you peek?
may they peek? 	may I be peeking?
may you be peeking?
may he be peeking?
may we be peeking?
may you be peeking?
may they be peeking? 	may I have peeked?
may you have peeked?
may he have peeked?
may we have peeked?
may you have peeked?
may they have peeked? 	may I have been peeking?
may you have been peeking?
may he have been peeking?
may we have been peeking?
may you have been peeking?
may they have been peeking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I peek?
mayn't you peek?
mayn't he peek?
mayn't we peek?
mayn't you peek?
mayn't they peek? 	mayn't I be peeking?
mayn't you be peeking?
mayn't he be peeking?
mayn't we be peeking?
mayn't you be peeking?
mayn't they be peeking? 	mayn't I have peeked?
mayn't you have peeked?
mayn't he have peeked?
mayn't we have peeked?
mayn't you have peeked?
mayn't they have peeked? 	mayn't I have been peeking?
mayn't you have been peeking?
mayn't he have been peeking?
mayn't we have been peeking?
mayn't you have been peeking?
mayn't they have been peeking?