Gonna = going to (将要，就要，正打算)
例句：I gonna fly now 。 (我将要飞！)
I gonna hit you 。 (我就要打你！)
Gotta = (have) got to = must (必须)
例句：We gotta buy food with money 。 (我们必须用钱买东西。)
I gotta go / I’ve gotta go ! (我得走了！)
Wanna = want to
want a
例句：I wanna kiss you 。(我想亲你。)
I wanna cigarette 。(我想要支香烟。)
