一般将来时:I will wait for you in the park.(我在公园等你.)
现在进行时:I am waiting for you in the park.(我在公园等你.)
现在完成时:I've waited for you in the park.(我在公园等你.)
过去进行时:I were waiting for you in the park.(我在公园等你.)
一般过去时:I waited for you in the park.(我在公园等你.)
过去完成时:I had waited for you in the park.(我在公园等你.)