YOU SAID:

probably gonna work till 6 am or something

INTO JAPANESE

おそらく午前6時まで働くでしょう

BACK INTO ENGLISH

I'll probably work till 6: 00 a.m.

INTO JAPANESE

おそらく午前６時まで働くだろう。

BACK INTO ENGLISH

I will probably work until six in the morning.

INTO JAPANESE

おそらく私は朝６時まで働くだろう。

BACK INTO ENGLISH

Perhaps I will work until six in the morning.

INTO JAPANESE

おそらく私は朝６時まで働きます。

BACK INTO ENGLISH

Perhaps I will work until six in the morning.