我常看见那老人在公园散步的翻译：I used to watch the old man walking in the Park 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

I often saw the old man walking in the park

I used to watch the old man walking in the Park

I often see that old person to take a walk in the park

I often saw the old man walk in the park

I used to watch the old man walking in the Park