may sniff
Regular verb: sniff - sniffed- sniffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may sniff
you may sniff
he may sniff
we may sniff
you may sniff
they may sniff 	I may be sniffing
you may be sniffing
he may be sniffing
we may be sniffing
you may be sniffing
they may be sniffing	I may have sniffed
you may have sniffed
he may have sniffed
we may have sniffed
you may have sniffed
they may have sniffed	I may have been sniffing
you may have been sniffing
he may have been sniffing
we may have been sniffing
you may have been sniffing
they may have been sniffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not sniff
you may not sniff
he may not sniff
we may not sniff
you may not sniff
they may not sniff 	I may not be sniffing
you may not be sniffing
he may not be sniffing
we may not be sniffing
you may not be sniffing
they may not be sniffing	I may not have sniffed
you may not have sniffed
he may not have sniffed
we may not have sniffed
you may not have sniffed
they may not have sniffed	I may not have been sniffing
you may not have been sniffing
he may not have been sniffing
we may not have been sniffing
you may not have been sniffing
they may not have been sniffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I sniff?
may you sniff?
may he sniff?
may we sniff?
may you sniff?
may they sniff? 	may I be sniffing?
may you be sniffing?
may he be sniffing?
may we be sniffing?
may you be sniffing?
may they be sniffing? 	may I have sniffed?
may you have sniffed?
may he have sniffed?
may we have sniffed?
may you have sniffed?
may they have sniffed? 	may I have been sniffing?
may you have been sniffing?
may he have been sniffing?
may we have been sniffing?
may you have been sniffing?
may they have been sniffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not sniff?
may you not sniff?
may he not sniff?
may we not sniff?
may you not sniff?
may they not sniff? 	may I not be sniffing?
may you not be sniffing?
may he not be sniffing?
may we not be sniffing?
may you not be sniffing?
may they not be sniffing? 	may I not have sniffed?
may you not have sniffed?
may he not have sniffed?
may we not have sniffed?
may you not have sniffed?
may they not have sniffed? 	may I not have been sniffing?
may you not have been sniffing?
may he not have been sniffing?
may we not have been sniffing?
may you not have been sniffing?
may they not have been sniffing?