Hello, There are 3 ways to say "You" in Bengali. a) Polite : Apni b) Familliar : Tumi c) Very familiar : tui (Use it only if you are really close with the person; like your best friend.) Note: All of them are in "Nominative case". Example: "You are a good person." = "Apni/Tumi/Tui ekjon valo manush" Now, "Tomake" is "Objective case"; Example: "You are welcome" = "Tomake shagoto janai". Objecti case for "Apni" is "Apnake" and "Tui" is "Toke".

There are three levels of politeness in Bengali. 1) Respectful (to strangers/elders): Ami (I), Apni (you), Tini/Uni/Ini (he/this person) 2) Polite without respect (to the peers of same level/lovers): Ami (I), Tumi (you), Se (he) 3) Close (to close friend) or impolite (to subordinate): Ami (I), Tui (you), O (he)

তুমি and আপনি means you..তুমি to say a friend and আপনি to say a respectful person..তোমাকে means , i wish to give a coffee to you তোমাকে,and a respectful person,,i wish to give you a coffee to you আপনাকে,,