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JLPT N2 Grammar Point: 〜ことだろう・〜ことか

JLPT N2

This JLPT N2 grammar point explains how to use 〜ことだろう・〜ことか correctly, with formation rules and example sentences.

Pattern

Explanation

Used to express strong emotion such as surprise, admiration, or lament about how much/often something is.

Usage

Common in written or literary contexts. Often used with expressions like なんと, どんなに, いったい.

Formation

Attach to a clause with a question word (e.g., どれほど, どんなに) and a verb/adjective in plain form.

Examples

一人で子育てするのがどれほど大変なことだろう

ひとりでこそだてするのがどれほどたいへんなことだろう。

How difficult it must be to raise a child alone.

どんなに彼を待ち続けたことか、誰にもわからない。

どんなにかれをまちつづけたことか、だれにもわからない。

No one knows just how long I waited for him.

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