1. I don't want go to the theater.
   Mistake: Missing auxiliary verb "to" before the main verb "go".
   Correction: I don't want to go to the theater.

2. Nam doesn't want going to the movie because he is tired.
   Mistake: Incorrect use of gerund after modal verb "want".
   Correction: Nam doesn't want to go to the movie because he is tired.

3. What do you usually do at your free time?
   Mistake: Missing preposition "in" before the noun phrase "your free time".
   Correction: What do you usually do in your free time?

4. How often are they going to stay in Hue? - For two weeks.
   Mistake: Incomplete sentence, missing verb.
   Correction: They are going to stay in Hue for two weeks.

5. Miss Lan sometime goes to the cinema on the weekend.
   Mistake: Incorrect use of singular noun "sometime" instead of plural "sometimes".
   Correction: Miss Lan sometimes goes to the cinema on the weekend.

1. I don't want go to the theater. => to go

   A   B            C              D

2. Nam doesn't want going to the movie because he is tired. => to go

                 A                 B                              C           D

3. What do you usually do at your free time? => in

       A                    B          C            D

4. How often are they going to stay in Hue? - For two weeks. => long

               A                     B                C                     D

5. Miss Lan sometime goes to the cinema on the weekend. => sometimes

                           A         B               C         D