English verb conjugation
MAY IMPROVE

Regular verb: improve - improved - improved

Affirmation

Simple form	V-ing form
I may improve you may improve he may improve we may improve you may improve they may improve	I may be improving you may be improving he may be improving we may be improving you may be improving they may be improving
Perfect	V-ing perfect
I may have improved you may have improved he may have improved we may have improved you may have improved they may have improved	I may have been improving you may have been improving he may have been improving we may have been improving you may have been improving they may have been improving

Negation

Simple form	V-ing form
I mayn't improve you mayn't improve he mayn't improve we mayn't improve you mayn't improve they mayn't improve	I mayn't be improving you mayn't be improving he mayn't be improving we mayn't be improving you mayn't be improving they mayn't be improving
Perfect	V-ing perfect
I mayn't have improved you mayn't have improved he mayn't have improved we mayn't have improved you mayn't have improved they mayn't have improved	I mayn't have been improving you mayn't have been improving he mayn't have been improving we mayn't have been improving you mayn't have been improving they mayn't have been improving

Interrogative form

Simple form	V-ing form
may I improve? may you improve? may he improve? may we improve? may you improve? may they improve?	may I be improving? may you be improving? may he be improving? may we be improving? may you be improving? may they be improving?
Perfect	V-ing perfect
may I have improved? may you have improved? may he have improved? may we have improved? may you have improved? may they have improved?	may I have been improving? may you have been improving? may he have been improving? may we have been improving? may you have been improving? may they have been improving?

Interro-negative form

Simple form	V-ing form
mayn't I improve? mayn't you improve? mayn't he improve? mayn't we improve? mayn't you improve? mayn't they improve?	mayn't I be improving? mayn't you be improving? mayn't he be improving? mayn't we be improving? mayn't you be improving? mayn't they be improving?
Perfect	V-ing perfect
mayn't I have improved? mayn't you have improved? mayn't he have improved? mayn't we have improved? mayn't you have improved? mayn't they have improved?	mayn't I have been improving? mayn't you have been improving? mayn't he have been improving? mayn't we have been improving? mayn't you have been improving? mayn't they have been improving?