～しか～ない

私はコーヒーしか飲みません。

I only drink coffee. (implies I don't drink anything else)

ここに一人しかいません。

There is only one person here. (implies no one else)

この本は日本語しか読めません。

I can only read this book in Japanese. (implies no other languages)

昨日、3時間しか寝ませんでした。

Yesterday, I only slept for 3 hours. (implies not more than 3 hours)

私は英語しか話せません。

I can only speak English. (implies no other languages)

この店には野菜しかありません。

This store only has vegetables. (implies nothing else)

私はこれしか持っていません。

I only have this. (implies nothing else)

今日は宿題しかしていません。

Today, I only did homework. (implies nothing else)

彼しかこの問題を解決できない。

Only he can solve this problem.

Here, '～しか～ない' emphasizes that only '彼' (he) has the ability to solve the problem.

昨日、３時間しか寝ませんでした。

Yesterday, I only slept for three hours.

This sentence indicates that the speaker slept for a mere three hours, highlighting the limited duration.

この店では、現金しか使えません。

At this store, you can only use cash.

This implies that no other payment methods are accepted besides cash.

週末しか彼に会えません。

I can only meet him on weekends.

This shows a restriction on when the meeting can occur, limiting it to weekends.

この本は、図書館にしかありません。

This book is only available at the library.

This indicates the book's exclusive availability at the library.

コーヒーしか飲みません。

I only drink coffee.

This expresses a preference or habit of consuming only coffee.

彼女しかその秘密を知らない。

Only she knows that secret.

This emphasizes that the knowledge of the secret is exclusive to her.

もう少ししか時間がありません。

There is only a little time left.

This highlights the limited amount of time remaining.