ought to gas
Regular verb: gas - gassed- gassed

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to gas
you ought not to gas
he ought not to gas
we ought not to gas
you ought not to gas
they ought not to gas 	I ought not to gassing
you ought not to gassing
he ought not to gassing
we ought not to gassing
you ought not to gassing
they ought not to gassing	I ought not to have gassed
you ought not to have gassed
he ought not to have gassed
we ought not to have gassed
you ought not to have gassed
they ought not to have gassed	I ought not to have been gassing
you ought not to have been gassing
he ought not to have been gassing
we ought not to have been gassing
you ought not to have been gassing
they ought not to have been gassing	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to gas?
ought you not to gas?
ought he not to gas?
ought we not to gas?
ought you not to gas?
ought they not to gas? 	ought I not to be gassing?
ought you not to be gassing?
ought he not to be gassing?
ought we not to be gassing?
ought you not to be gassing?
ought they not to be gassing? 	ought I not to have gassed?
ought you not to have gassed?
ought he not to have gassed?
ought we not to have gassed?
ought you not to have gassed?
ought they not to have gassed? 	ought I not to have been gassing?
ought you not to have been gassing?
ought he not to have been gassing?
ought we not to have been gassing?
ought you not to have been gassing?
ought they not to have been gassing?