ことは〜が - Grammar Discussion

Grammar Points
#1

It is true…but
although
but

Structure

  • Verb1 + ことは + Verb1 + が/けど
  • い-Adj1 + ことは + い-Adj1 + が/けど
  • な-Adj1 + な + ことは + な-Adj1 + だ + が/けれど

Used to show the idea of contrast and limitation

View on Bunpro

#2

In this grammar form, how do you know which form the verb should take on both sides of the ことは ?

My understanding was that the verb should be in exactly the same form on both sides of ことは

However, in the examples on Bunpro, I also see
分かることは分かりますが、簡単な言葉だけです。(mixed politeness levels)
ボルトは外れることは外れたが, これ以上分解できない。(mixed tenses)
引越しはしたことはしたが、こっちの家も欠陥住宅だった。(both instances in past tense)

#3

Politeness:

Politeness markers are usually not used in the middle of a sentence, so if the speaker wants to be polite the second word is the only option.

Tense:

For events in the past, the second word is in the past form, but the first word doesn’t have to be. There is no difference in meaning.

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