157. "Throw it" used instead of "throw it away"
(X) It's dirty, throw it.
(O) It's dirty, throw it away.
Throw it means to throw a thing at someone or womewhere, such as a ball.
Throw it away means to get rid of it by throwing it aside.
158. "I don't think" used instead of "I don't think so"
(X) I don't think.
(O) I don't think so.
"I don't think" means I don't use my brains, while "I don't think so" means I am not of that opinion.
159. Before yesterday, etc., used instead of "the day before yesterday", etc
(X) Lynne arrived before yesterday.
(O) Lynne arrived the day before yesterday.
The phrases "before yesterday after tomorrow, after next week are incorrect.
Say instead, "the day before yesterday, the day after tomorrow, the week after next".