Is that the only meaning of ~てしまう your textbook provides? I can't believe it.
Well, it is, next to the past-tense form, which says that something is finished.
coming back for the rest later, thanks!
Oh, and that one regrets the action expressed through the verb before しまいました。 But it was restricted to the past form, at least as far as the explanation went.
くれる doesn't make sense since the conjugation form and the choice of the verb are both wrong.
But I've written 遅れる^^ admittedly without the kanji, seems to have slipped my attention...
もしもし、田中です。すみません、電車でくれることをきめたんですが、電車を間違えて
しまったんです。だから30ぷんほど
おくれる
I'll unify the level of politeness, but overall this helps little for my progress since my textbook still sticks to the grammaticalization of the level of politeness.
Pretty much all the texts I get to work with use the plain forms as an indicator for certain grammatical constructions, independently from the level of politeness the text in question uses. Therefore I don't really have an understanding for the grammatical contexts in which the polite form is allowed and for those in which it isn't.
For a few cases my textbook has already explicitely pointed where polite form is allowed as an alternative. But I can count those on one hand ^^
=>
もしもし、田中だ。すみません、電車でくれることをきめたんだが、電車を間違えて
しまったんだ。だから30ぷんほど遅れる。
11)
けいこさんが、今日急な仕事が入って
遅くなりそうなので、晩ご飯を先に食べるようにというメッセージをいれました。
=> Keiko left a message saying that they should have dinner early (=before her return), because urgent business came up and it seemed likely that she would be late.
This is how I would translate it, however 遅く gives me a headache.
I only know 遅れる、I haven't seen any variation with a masu-stem おく, it's always been 遅れ。I don't know of grammatical process yet within which the masu-stem itself is transformed.
What is this?