Answer:
See below
Step-by-step explanation:
Sentence:
I crossed the river.
Tense:
Negative Sentence:
- Use of not.
- Since the sentence is past simple, we will use did.
- Use of first form after did.
⇒ I did not cross the river.
Interrogative sentence:
- Interchange subject and verb.
- Use of question mark.
⇒ Did I cross the river?
![\rule[225]{225}{2}](https://img.qammunity.org/2023/formulas/english/college/eq413d752mwtrwwenrzwldxt4w1olmf1b3.png)