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How to Say ‘Which part was hard to understand?’ in Japanese

どこがわかりにくかったですか。

doko ga wakari nikukatsu ta desu ka

[doh-koh gah wakari nee-KOO-kat ta dess kah]

💬 Usage Tip: Add にくい to the stem of an action word to say it's hard to do. わかる becomes わかりにくい, and 読む "to read" becomes 読みにくい "hard to read".

Phrase Breakdown

どこが

doko ga

which part / where

どこ means 'where' or 'which part'. が marks it as the subject of the question.

Example

どこが痛いですか。

Where does it hurt?

Words in this phrase

どこ

doko

[doh-koh]

where; which part

In symptom questions, どこが…? means “Where (on your body) …?”

Example

どこが痛いですか。

Where does it hurt?

が

ga

[gah]

subject marker

が marks what “came out”: “The results (are what) came out.” Natural for announcements from staff/doctor.

Example

けっかがでましたので、説明します。

Since the results are out, I’ll explain.

わかりにくかったですか。

wakari nikukatsu ta desu ka

was hard to understand?

わかりにくい means 'hard to understand'. かった makes it past tense, and ですか makes it a polite question.

Example

この説明はわかりにくかったですか。

Was this explanation hard to understand?

Words in this phrase

わかり

wakari

[wakari]

to understand

Indicates comprehension or agreement.

Example

先生がわかりました。

I understood the teacher.

にくかっ

nikukatsu

[nee-KOO-kat]

was hard to (do)

Past form of the suffix -nikui, meaning something is difficult to do; attaches to a verb stem.

Example

この字は読みにくかった。

These letters were hard to read.

た

ta

[ta]

past tense ending

This marks the action as completed in the past.

Example

スタッフが来ました。

The staff member came.

です

desu

[dess]

is; polite copula

Polite form of 'to be' used in many basic sentences.

Example

こちらで大丈夫です。

This is fine.

か

ka

[kah]

question particle

か is placed at the end of a sentence to mark it as a question in polite Japanese.

Example

先生ですか。

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