can vs could

网络搜索结果：
can 是人们最常用的表达方式。

这两句话的差异是什么？

"Can" 和 "could" 都表示能力或可能性，但它们的使用场合有所不同。"Can" 通常用于现在时，表示当前的能力或允许，例如“我能游泳。”而 "could" 是 "can" 的过去式，表示过去的能力或可能性，例如“我小时候能游泳。”此外，"could" 也可以用来表示更礼貌的请求或建议，例如“你能帮我吗？”相比之下，"can" 在请求时显得更直接。

can的例句

I can swim very well.

She can play the piano beautifully.

They can finish the project on time.

He can speak three languages fluently.

We can go to the park later.

You can help me with my homework.

The dog can fetch the ball.

I can see the mountains from here.

She can cook delicious meals.

They can solve the puzzle together.
could的例句

I could go to the party if I finish my work.

She said she could help me with my homework.

If I had a car, I could drive you to the airport.

He could play the piano beautifully when he was younger.

They could see the mountains from their hotel room.

I could eat pizza every day and never get tired of it.

We could visit the museum this weekend if you want.

She could speak three languages fluently.

If it rains, we could stay indoors and watch movies.

I wish I could travel around the world someday.