SIMPLE PAST TENSE EXERCISE 2: NEGATIVE SENTENCES (ESL)
level: Beginner (A1/A2)
✓ Useful for IELTS✓ Useful for TOEFL
Good news first: didn't never changes, no matter the subject: I didn't, you didn't, she didn't, they didn't, all identical. The part that trips people up is what comes after it. This exercise drills exactly that.
GRAMMAR REVIEWThe simple past: negative sentences
To make the simple past negative, use did not (didn't) before the base form of the verb.
Structure:
Subject + didn't + base verb
→ She didn't work yesterday.
The one rule that matters most: Didn't is exactly the same for every subject: I, you, he, she, it, we, they. There's no equivalent of the present tense's don't/doesn't split to worry about here.
The most common mistake at this level:
Once didn't is doing the "past" job, the main verb goes back to its plain base form. It does not also take the past tense ending or irregular form.
✗ "She didn't went to the party." (wrong: double marking the past)
✓ "She didn't go to the party." (correct)
This is true even for irregular verbs you already know the past form of, like go/went, see/saw, and have/had. All of them return to their base form after didn't.