Please capitalize where necessary: i have by chance come in on your side, and discovered that there are some errors regarding your interpretation of christianity. i do not want to criticize you, just enlighten you ...
A: I have by chance come in on your side, and discovered that there are some errors regarding your interpretation of Christianity. I do not want to criticize you, just enlighten you ...

Please capitalize where necessary: he loves you and he knows who you are.
A: He loves you and He knows who you are.

Please capitalize where necessary: rent a car in brussel with a 70% discount - cars scanner
A: Rent a car in Brussel with a 70% discount - Cars Scanner

Please capitalize where necessary: description of a fire within a room
A:
Description of a fire within a room