我也玩英语

是的，这是个贬义词.意思是:我也在敷衍你。

是的，表达的意思就是我也在耍你。

I'm begging you, I want to play as well.或者直接说Please let me play as well也行

i want to hang out as well

对，翻译为我也在耍你，此处使用了be playing at，意思为乱搞，瞎闹

我看见一个人在玩通风管道我也想玩。I saw someone playing with the ventilation duct, and I wanted to play too.I saw a man playing the ventilation duct and I want to play.

I want to go out to play!