I may compare you may compare she may compare we may compare you may compare they may compare
V-ing form
I may be comparing you may be comparing she may be comparing we may be comparing you may be comparing they may be comparing
Perfect
I may have compared you may have compared she may have compared we may have compared you may have compared they may have compared
V-ing perfect
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
I may not compare you may not compare she may not compare we may not compare you may not compare they may not compare
V-ing form
I may not be comparing you may not be comparing she may not be comparing we may not be comparing you may not be comparing they may not be comparing
Perfect
I may not have compared you may not have compared she may not have compared we may not have compared you may not have compared they may not have compared
V-ing perfect
I may not have been comparing you may not have been comparing she may not have been comparing we may not have been comparing you may not have been comparing they may not have been comparing
Interrogative form
Simple form
may I compare? may you compare? may she compare? may we compare? may you compare? may they compare?
V-ing form
may I be comparing? may you be comparing? may she be comparing? may we be comparing? may you be comparing? may they be comparing?
Perfect
may I have compared? may you have compared? may she have compared? may we have compared? may you have compared? may they have compared?
V-ing perfect
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
may I not compare? may you not compare? may she not compare? may we not compare? may you not compare? may they not compare?
V-ing form
may I not be comparing? may you not be comparing? may she not be comparing? may we not be comparing? may you not be comparing? may they not be comparing?
Perfect
may I not have compared? may you not have compared? may she not have compared? may we not have compared? may you not have compared? may they not have compared?
V-ing perfect
may I not have been comparing? may you not have been comparing? may she not have been comparing? may we not have been comparing? may you not have been comparing? may they not have been comparing?