Present Simple Yes-No Questions

To form yes/no questions in the present simple tense, follow this structure: start with the auxiliary verb "do" or "does." Add the subject (the person or thing you are asking about). Use the base form of the main verb. - Use "do" with the subjects "I," "you," "we," and "they." - Use "does" with the subjects "he," "she," and "it." Examples: Do you like pizza? → Yes, I do / No, I do not (don't). Does he play soccer? → Yes, she does / No, he does not (doesn't). Common Mistakes: - Adding "s" to the main verb in questions (incorrect: Does she plays? → Correct: Does she play?). - Using "do" instead of "does" with singular third-person subjects (incorrect: Do he play? → Correct: Does he play?).