We are not waiting in line . what is apostrophe in this sentence

1.	We are not waiting in line . what is apostrophe in this sentence
Answer» $\color{green}\large\underline{\underline{Hello...}}$ $\color{blue}\large\underline{\underline{Answer:}}$ We *aren't* waiting in LINE**. $\color{magenta}\large\boxed{\boxed{Be... Brainly...!!!}}$

Answer»

$\color{green}\large\underline{\underline{Hello...}}$