YOU SAID:

i was eating tnts when suddenly a witch came up to me and farted and my tnts blew up

INTO JAPANESE

TNTを食べていたら突然魔女が近づいてきてオナラをしてTNTが爆発した

BACK INTO ENGLISH

When I was eating TNT, a witch suddenly approached me and farted, causing the TNT to explode.

INTO JAPANESE

TNTを食べていると、突然魔女が近づいてきてオナラをしてTNTが爆発しました。

BACK INTO ENGLISH

As I was eating TNT, a witch suddenly approached me and farted, causing the TNT to explode.

INTO JAPANESE

私が TNT を食べていると、突然魔女が近づいてきてオナラをしたため、TNT が爆発しました。

BACK INTO ENGLISH

As I was eating TNT, a witch suddenly approached me and farted, causing the TNT to explode.