Grammar 

You said (당신은 말했다): friends 
Correct sentence (올바른 문장): I am going to play with my friends later.

You said (당신은 말했다): inside internet
Correct sentence (올바른 문장): I bought it online.

You said (당신은 말했다): it become Thursday
Correct sentence (올바른 문장): It arrived on Thursday.

You said (당신은 말했다): I went grandmother's house
Correct sentence (올바른 문장): I went to my grandmother's house on Saturday.

You said (당신은 말했다): I was funny
Correct sentence (올바른 문장): I had fun.

You said (당신은 말했다): I dont know she's name
Correct sentence (올바른 문장): I don't know her name. 

You said (당신은 말했다): They going to play on Sunday. 
Correct sentence (올바른 문장): They are going to play on Sunday.

Pronunciation 

play [pley]
busy [BIZ-ee]
arrived [uh-RAHVYD]

Spelling

You: MAKANIK
Correct: MECHANIC

You: UMBRLLA
Correct: UMBRELLA

You: COFFE
Correct: COFFEE