Kannst du nicht verstehen, dass ich dich liebe. - Can't you see that I love you?
"Ich brauche dich" is "I need you" in English.
Ich hasse dich nicht translates as I don't hate you.
I want to kiss you.
It means: "Can you play with me on Sunday?".
Ich werde dich nie vergessen. - I won't forget you.
The "am" can mean several different things depending on what follows (it can mean at, on, in, by, most, etc.). "Ich habe" means "I have."
"What often makes you angry..."
I don't like you.
"Ich möchte dich sehen" means "I would like to see you."
It means contact me or give me a shout.
like (I like you = ich mag dich)