i must have watched 和 i must have been watch TV意思一样吗 为什么

i must have watched 和 i must have been watch TV意思一样吗 为什么
i must have watched 和 i must have been watch TV意思一样吗 为什么

i must have watched 和 i must have been watch TV意思一样吗 为什么
不一样.
I must have watched表示我肯定已经看过了；I must have been watching TV表示某个时间段正在看电视,事情发生在说话前