次第/しだい

Question 1

次第

Answer 1

“As soon as A”. Polite form.

動Xます　+　次第

Question 2

次第だ　

Answer 2

“Depending on A, B”. B is a change/result. Not used for increase or decrease changes. Changes are not certain (normally many possibilities) . Used with 決まる, なります, 考える

名　+　次第だ
名　+　次第で　+　名 many possibilities
名　+　次第では　+　名 one possibility