I may fishtail you may fishtail she may fishtail we may fishtail you may fishtail they may fishtail
V-ing form
I may be fishtailing you may be fishtailing she may be fishtailing we may be fishtailing you may be fishtailing they may be fishtailing
Perfect
I may have fishtailed you may have fishtailed she may have fishtailed we may have fishtailed you may have fishtailed they may have fishtailed
V-ing perfect
I may have been fishtailing you may have been fishtailing she may have been fishtailing we may have been fishtailing you may have been fishtailing they may have been fishtailing
Negation
Simple form
I mayn't fishtail you mayn't fishtail she mayn't fishtail we mayn't fishtail you mayn't fishtail they mayn't fishtail
V-ing form
I mayn't be fishtailing you mayn't be fishtailing she mayn't be fishtailing we mayn't be fishtailing you mayn't be fishtailing they mayn't be fishtailing
Perfect
I mayn't have fishtailed you mayn't have fishtailed she mayn't have fishtailed we mayn't have fishtailed you mayn't have fishtailed they mayn't have fishtailed
V-ing perfect
I mayn't have been fishtailing you mayn't have been fishtailing she mayn't have been fishtailing we mayn't have been fishtailing you mayn't have been fishtailing they mayn't have been fishtailing
Interrogative form
Simple form
may I fishtail? may you fishtail? may she fishtail? may we fishtail? may you fishtail? may they fishtail?
V-ing form
may I be fishtailing? may you be fishtailing? may she be fishtailing? may we be fishtailing? may you be fishtailing? may they be fishtailing?
Perfect
may I have fishtailed? may you have fishtailed? may she have fishtailed? may we have fishtailed? may you have fishtailed? may they have fishtailed?
V-ing perfect
may I have been fishtailing? may you have been fishtailing? may she have been fishtailing? may we have been fishtailing? may you have been fishtailing? may they have been fishtailing?
Interro-negative form
Simple form
mayn't I fishtail? mayn't you fishtail? mayn't she fishtail? mayn't we fishtail? mayn't you fishtail? mayn't they fishtail?
V-ing form
mayn't I be fishtailing? mayn't you be fishtailing? mayn't she be fishtailing? mayn't we be fishtailing? mayn't you be fishtailing? mayn't they be fishtailing?
Perfect
mayn't I have fishtailed? mayn't you have fishtailed? mayn't she have fishtailed? mayn't we have fishtailed? mayn't you have fishtailed? mayn't they have fishtailed?
V-ing perfect
mayn't I have been fishtailing? mayn't you have been fishtailing? mayn't she have been fishtailing? mayn't we have been fishtailing? mayn't you have been fishtailing? mayn't they have been fishtailing?