Put the words in order: I / coffee / like.

語順を並べましょう：I / coffee / like.

I like coffee.

I like coffee.です。

Make a question with 'do.'

doを使って質問を作りましょう。

Do you like coffee?

Do you like coffee?です。

Why is the base form used after 'did'?

なぜdidの後は原形ですか？

Because 'did' already carries the past tense.

didがすでに過去を表すからです。

What is the difference between 'I went' and 'I have been'?

I wentとI have beenの違いは何ですか？

'I went' refers to a finished past event, while 'I have been' connects past experience to now.

I wentは完了した過去、I have beenは過去の経験を今につなげます。

The sentence is grammatical, but why does it sound unnatural here?

文法的に正しいのに、なぜここでは不自然ですか？

The tense is possible, but the context needs a completed event rather than a current result.

時制自体は可能ですが、文脈では現在の結果より完了した出来事が必要です。

How can you choose between two correct structures?

正しい2つの構文からどう選びますか？

I will consider the speaker's focus, time frame, formality, and the information already shared.

話し手の焦点、時間範囲、丁寧さ、共有済み情報を考えます。