てします and です
So, in Japanese we use "~てします" on the end of a verb in te-form to say that that particular verb is regrettable.

Can we combine this with です to extend this to nouns and adjectives? For example, if It's regrettable that the weather is hot, or that I'm busy, can I convert "暑いです" to "暑いでしまいます" or "忙しいです" to "忙しいでしまいます"?

If not, or if you can but it sounds unnatural, how should you say e.g. "the weather is regrettably hot" or "I'm regrettably busy"?

Question

てします and です
So, in Japanese we use "~てします" on the end of a verb in te-form to say that that particular verb is regrettable.

Can we combine this with です to extend this to nouns and adjectives? For example, if It's regrettable that the weather is hot, or that I'm busy, can I convert "暑いです" to  "暑いでしまいます" or "忙しいです" to "忙しいでしまいます"?

If not, or if you can but it sounds unnatural, how should you say e.g. "the weather is regrettably hot" or "I'm regrettably busy"?

Answer

If I understood your question correctly,you probably mean ～してしまう, right? 
暑くなってしまった。- It has become hot (unintentionally).
忙しくなってしまった。- I've become busy (unintentionally).
～してしまう can as well be shortened ～じゃった or ～ちゃった, depending on the verb's ending, e.g. 死んじゃった、食べちゃった、飲んじゃった etc. So you just simply use the ～ちゃった form when the ending of a verb contains た, and ～じゃった when it contains だ。
暑くなちゃった。- It has become hot.
忙しくなちゃった。 - I've become busy.

I feel like I've missed the point of your question completely but I hope this helps you in any way if that's what you wanted to know. If not, I apologize!

Answer

A bit confused about what you are trying to do, but shouldn't the correct form be 暑くて?

Answers · 4

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