may gas
Regular verb: gas - gassed- gassed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may gas
you may gas
he may gas
we may gas
you may gas
they may gas 	I may be gassing
you may be gassing
he may be gassing
we may be gassing
you may be gassing
they may be gassing	I may have gassed
you may have gassed
he may have gassed
we may have gassed
you may have gassed
they may have gassed	I may have been gassing
you may have been gassing
he may have been gassing
we may have been gassing
you may have been gassing
they may have been gassing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't gas
you mayn't gas
he mayn't gas
we mayn't gas
you mayn't gas
they mayn't gas 	I mayn't be gassing
you mayn't be gassing
he mayn't be gassing
we mayn't be gassing
you mayn't be gassing
they mayn't be gassing	I mayn't have gassed
you mayn't have gassed
he mayn't have gassed
we mayn't have gassed
you mayn't have gassed
they mayn't have gassed	I mayn't have been gassing
you mayn't have been gassing
he mayn't have been gassing
we mayn't have been gassing
you mayn't have been gassing
they mayn't have been gassing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I gas?
may you gas?
may he gas?
may we gas?
may you gas?
may they gas? 	may I be gassing?
may you be gassing?
may he be gassing?
may we be gassing?
may you be gassing?
may they be gassing? 	may I have gassed?
may you have gassed?
may he have gassed?
may we have gassed?
may you have gassed?
may they have gassed? 	may I have been gassing?
may you have been gassing?
may he have been gassing?
may we have been gassing?
may you have been gassing?
may they have been gassing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I gas?
mayn't you gas?
mayn't he gas?
mayn't we gas?
mayn't you gas?
mayn't they gas? 	mayn't I be gassing?
mayn't you be gassing?
mayn't he be gassing?
mayn't we be gassing?
mayn't you be gassing?
mayn't they be gassing? 	mayn't I have gassed?
mayn't you have gassed?
mayn't he have gassed?
mayn't we have gassed?
mayn't you have gassed?
mayn't they have gassed? 	mayn't I have been gassing?
mayn't you have been gassing?
mayn't he have been gassing?
mayn't we have been gassing?
mayn't you have been gassing?
mayn't they have been gassing?