English verb conjugation
MAY SEISE

Regular verb: seise - seised - seised

Affirmation

Simple form	V-ing form
I may seise you may seise she may seise we may seise you may seise they may seise	I may be seising you may be seising she may be seising we may be seising you may be seising they may be seising
Perfect	V-ing perfect
I may have seised you may have seised she may have seised we may have seised you may have seised they may have seised	I may have been seising you may have been seising she may have been seising we may have been seising you may have been seising they may have been seising

Negation

Simple form	V-ing form
I mayn't seise you mayn't seise she mayn't seise we mayn't seise you mayn't seise they mayn't seise	I mayn't be seising you mayn't be seising she mayn't be seising we mayn't be seising you mayn't be seising they mayn't be seising
Perfect	V-ing perfect
I mayn't have seised you mayn't have seised she mayn't have seised we mayn't have seised you mayn't have seised they mayn't have seised	I mayn't have been seising you mayn't have been seising she mayn't have been seising we mayn't have been seising you mayn't have been seising they mayn't have been seising

Interrogative form

Simple form	V-ing form
may I seise? may you seise? may she seise? may we seise? may you seise? may they seise?	may I be seising? may you be seising? may she be seising? may we be seising? may you be seising? may they be seising?
Perfect	V-ing perfect
may I have seised? may you have seised? may she have seised? may we have seised? may you have seised? may they have seised?	may I have been seising? may you have been seising? may she have been seising? may we have been seising? may you have been seising? may they have been seising?

Interro-negative form

Simple form	V-ing form
mayn't I seise? mayn't you seise? mayn't she seise? mayn't we seise? mayn't you seise? mayn't they seise?	mayn't I be seising? mayn't you be seising? mayn't she be seising? mayn't we be seising? mayn't you be seising? mayn't they be seising?
Perfect	V-ing perfect
mayn't I have seised? mayn't you have seised? mayn't she have seised? mayn't we have seised? mayn't you have seised? mayn't they have seised?	mayn't I have been seising? mayn't you have been seising? mayn't she have been seising? mayn't we have been seising? mayn't you have been seising? mayn't they have been seising?