may siphon
Regular verb: siphon - siphoned- siphoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may siphon
you may siphon
he may siphon
we may siphon
you may siphon
they may siphon 	I may be siphoning
you may be siphoning
he may be siphoning
we may be siphoning
you may be siphoning
they may be siphoning	I may have siphoned
you may have siphoned
he may have siphoned
we may have siphoned
you may have siphoned
they may have siphoned	I may have been siphoning
you may have been siphoning
he may have been siphoning
we may have been siphoning
you may have been siphoning
they may have been siphoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not siphon
you may not siphon
he may not siphon
we may not siphon
you may not siphon
they may not siphon 	I may not be siphoning
you may not be siphoning
he may not be siphoning
we may not be siphoning
you may not be siphoning
they may not be siphoning	I may not have siphoned
you may not have siphoned
he may not have siphoned
we may not have siphoned
you may not have siphoned
they may not have siphoned	I may not have been siphoning
you may not have been siphoning
he may not have been siphoning
we may not have been siphoning
you may not have been siphoning
they may not have been siphoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I siphon?
may you siphon?
may he siphon?
may we siphon?
may you siphon?
may they siphon? 	may I be siphoning?
may you be siphoning?
may he be siphoning?
may we be siphoning?
may you be siphoning?
may they be siphoning? 	may I have siphoned?
may you have siphoned?
may he have siphoned?
may we have siphoned?
may you have siphoned?
may they have siphoned? 	may I have been siphoning?
may you have been siphoning?
may he have been siphoning?
may we have been siphoning?
may you have been siphoning?
may they have been siphoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not siphon?
may you not siphon?
may he not siphon?
may we not siphon?
may you not siphon?
may they not siphon? 	may I not be siphoning?
may you not be siphoning?
may he not be siphoning?
may we not be siphoning?
may you not be siphoning?
may they not be siphoning? 	may I not have siphoned?
may you not have siphoned?
may he not have siphoned?
may we not have siphoned?
may you not have siphoned?
may they not have siphoned? 	may I not have been siphoning?
may you not have been siphoning?
may he not have been siphoning?
may we not have been siphoning?
may you not have been siphoning?
may they not have been siphoning?