Today, I ride inline skate.
It's scary.
HaHaHa HoHoHo! It's fun.
I like playing inline skate.

Sarah: today ride inine skate.
Correct: Today, I ride inline skate.
Explanation: Put 'I' because it's you who ride inline skate.

Sarah: scard
Correct: It's scary.
Explanation: Perhaps you mean scary because playing inline skate is really scary, especially when you are not good at it.

Sarah: I like inline skate
Correct: I like playing inline skate.
Explanation: You like the manner of playing the inline skate, so there should be playing.

Hello Sarah! I was surprised that you sent a short composition about your experience playing an inline skate even though I did not ask you to do it. Great job! You can send more compositions if you want to practice your sentence construction skill.:)