Verb + 过
The particle 过 placed after a verb indicates that an action has been experienced at some point in the past. It focuses on whether something has ever happened, not when. For example, 我去过中国 means "I have been to China (at some point)" and 你吃过北京烤鸭吗? means "Have you ever eaten Peking duck?"
我看过这部电影,特别好看。
wǒ kànguò zhè bù diànyǐng, tèbié hǎokàn.
I've seen this movie, it's really good.
你学过日语吗?
nǐ xuéguò rìyǔ ma?
Have you studied Japanese before?
她以前来过上海两次。
tā yǐqián láiguò shànghǎi liǎng cì.
She's been to Shanghai twice before.