Explanation: Auxiliary Verbs "Do" for Simple Present and Simple

By Mostafa Shalaby

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Simple Present Tense:

• Affirmative Sentences:

  • I/You/We/They: Use the base form of the main verb.

    • Example: "I eat apples."

  • He/She/It: Add an "s" or "es" to the base form of the main verb.

    • Example: "He eats apples."

By Mostafa Shalaby

• Negative Sentences:

  • Use "do not" (don't) before the main verb.

    • Example: "I do not eat apples." (I don't eat apples.)

    • Example: "He does not eat apples." (He doesn't eat apples.)

By Mostafa Shalaby

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• Questions:

  • Use "do" or "does" before the subject.

    • Example: "Do you eat apples?"

    • Example: "Does he eat apples?"

By Mostafa Shalaby

Simple Past Tense:

• Affirmative Sentences:

  • Use the past form of the main verb.

    • Example: "I ate apples."

    • Example: "He ate apples."

By Mostafa Shalaby

​Negative Sentences:

• Use "did not" (didn't) before the main verb.

  • Example: "I did not eat apples." (I didn't eat apples.)

  • Example: "He did not eat apples." (He didn't eat apples.)

• Questions:

  • Use "did" before the subject.

    • Example: "Did you eat apples?"

Example: "Did he eat apples?"