may compare
Regular verb: compare - compared- compared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may compare
you may compare
she may compare
we may compare
you may compare
they may compare 	I may be comparing
you may be comparing
she may be comparing
we may be comparing
you may be comparing
they may be comparing	I may have compared
you may have compared
she may have compared
we may have compared
you may have compared
they may have compared	I may have been comparing
you may have been comparing
she may have been comparing
we may have been comparing
you may have been comparing
they may have been comparing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't compare
you mayn't compare
she mayn't compare
we mayn't compare
you mayn't compare
they mayn't compare 	I mayn't be comparing
you mayn't be comparing
she mayn't be comparing
we mayn't be comparing
you mayn't be comparing
they mayn't be comparing	I mayn't have compared
you mayn't have compared
she mayn't have compared
we mayn't have compared
you mayn't have compared
they mayn't have compared	I mayn't have been comparing
you mayn't have been comparing
she mayn't have been comparing
we mayn't have been comparing
you mayn't have been comparing
they mayn't have been comparing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I compare?
may you compare?
may she compare?
may we compare?
may you compare?
may they compare? 	may I be comparing?
may you be comparing?
may she be comparing?
may we be comparing?
may you be comparing?
may they be comparing? 	may I have compared?
may you have compared?
may she have compared?
may we have compared?
may you have compared?
may they have compared? 	may I have been comparing?
may you have been comparing?
may she have been comparing?
may we have been comparing?
may you have been comparing?
may they have been comparing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I compare?
mayn't you compare?
mayn't she compare?
mayn't we compare?
mayn't you compare?
mayn't they compare? 	mayn't I be comparing?
mayn't you be comparing?
mayn't she be comparing?
mayn't we be comparing?
mayn't you be comparing?
mayn't they be comparing? 	mayn't I have compared?
mayn't you have compared?
mayn't she have compared?
mayn't we have compared?
mayn't you have compared?
mayn't they have compared? 	mayn't I have been comparing?
mayn't you have been comparing?
mayn't she have been comparing?
mayn't we have been comparing?
mayn't you have been comparing?
mayn't they have been comparing?