"To" and "For" are two of the most confusing prepositions in English. We often get these mixed up while using them in our conversations.
Here is a video about the correct use of "to" and "for".
Basically, "to" is used when anything is directed to someone, say, "I want to talk TO you", "I want to give this TO you". On the other hand, "for" is used when its meant for something/someone. For example, "I have a pen FOR you", "I want to do this FOR you". Easy, right?
Hope this video will remove all the confusions, and do remember to LIKE, COMMENT and SUBSCRIBE! Please SHARE more and more!