may respire
Regular verb: respire - respired- respired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may respire
you may respire
he may respire
we may respire
you may respire
they may respire 	I may be respiring
you may be respiring
he may be respiring
we may be respiring
you may be respiring
they may be respiring	I may have respired
you may have respired
he may have respired
we may have respired
you may have respired
they may have respired	I may have been respiring
you may have been respiring
he may have been respiring
we may have been respiring
you may have been respiring
they may have been respiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't respire
you mayn't respire
he mayn't respire
we mayn't respire
you mayn't respire
they mayn't respire 	I mayn't be respiring
you mayn't be respiring
he mayn't be respiring
we mayn't be respiring
you mayn't be respiring
they mayn't be respiring	I mayn't have respired
you mayn't have respired
he mayn't have respired
we mayn't have respired
you mayn't have respired
they mayn't have respired	I mayn't have been respiring
you mayn't have been respiring
he mayn't have been respiring
we mayn't have been respiring
you mayn't have been respiring
they mayn't have been respiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I respire?
may you respire?
may he respire?
may we respire?
may you respire?
may they respire? 	may I be respiring?
may you be respiring?
may he be respiring?
may we be respiring?
may you be respiring?
may they be respiring? 	may I have respired?
may you have respired?
may he have respired?
may we have respired?
may you have respired?
may they have respired? 	may I have been respiring?
may you have been respiring?
may he have been respiring?
may we have been respiring?
may you have been respiring?
may they have been respiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I respire?
mayn't you respire?
mayn't he respire?
mayn't we respire?
mayn't you respire?
mayn't they respire? 	mayn't I be respiring?
mayn't you be respiring?
mayn't he be respiring?
mayn't we be respiring?
mayn't you be respiring?
mayn't they be respiring? 	mayn't I have respired?
mayn't you have respired?
mayn't he have respired?
mayn't we have respired?
mayn't you have respired?
mayn't they have respired? 	mayn't I have been respiring?
mayn't you have been respiring?
mayn't he have been respiring?
mayn't we have been respiring?
mayn't you have been respiring?
mayn't they have been respiring?