“可惜”的英文表达有多种，可以根据不同的语境选择合适的表达方式。以下是一些常见的表达：

It's a pity.

It's too bad.

It is regrettable.

Unfortunately.

Regrettably.

What a pity!

What a shame!

Sad to say.

例句：

It's a pity that she couldn't come to the party.

It's too bad the weather is so bad today.

It is regrettable that we missed the train.

Unfortunately, we don't have enough time to finish the project.

Regrettably, he made a mistake in his speech.

What a pity! The game was cancelled.

What a shame that he had to leave early.

Sad to say, the book was missing from the library.

希望这些表达对你有所帮助!如果有更多具体的语境或需要更详细的用法说明，请随时告诉我。