What is the difference between he helped me out and he helped? In what context can we use them?
Help out is a phrasal verb that means "to help somebody, especially in a difficult situation."
He's always willing to help out.
When I bought the house, my sister helped me out with a loan.
"He helped me": I did something, and he did more which added to what I did.
"He helped me out": I was in trouble, and he acted to get me out of trouble.
For example "He helped me clean the room": I did some cleaning, and he also did some cleaning. "He helped me out cleaning the room": I would have been in trouble for not having cleaned the room, and he got me out of trouble by doing all the work for me.
They both mean the same thing, It is just their constructions that are different.
He helped me out during the exam when I was sick last year.
He helped me during the exam when I was sick last year
He helped me clean the room.
He helped me out cleaning my room.
He helped me out with the math problem. He helped me with the math problem.
He helped me decide which college I am supposed to attend.
He helped me out deciding which college I am supposed to attend.