cũng - also (i also like you)
cùng - ??? when do i use this. i hear it in songs like cùng nhau but i am not 100% how to use it
mà - i know what this means but i am very confuse when to use it and why, i see this word so many times in books
thôi - i know what this word means but am also confuse when to use it
assume - (i assume we are going to eat now because everyone is here)
suppose - (i am suppose to be in 12th grade but i fail 11th grade)
make up - (sorry i am late, i will make up for the lost time by giving you a free car ride)
trouble - (i am in trouble so my mom hit me)
so - (so, you want to go out with me)

thanks so much, vietnamese is confusing but since i am viet i know i can get this.