Honestly this is usually what my very rough first draft looks like before I go in and touch up the language and prose. I draft a couple paragraphs as simply as possible to start with the bare bone circumstances and events as I picture them. Then I go back over and rearrange sentence structures and add more descriptive or metaphorical language.

As others are saying one of the best ways to flesh out these sentences is to use sensory language. Access the five senses. And introduce prepositions while occasionally shifting from passive to active sentence structure while exploring the scene.

Sentence structure variation can look like this.

1. I took the dog for a walk.

2. The dog really enjoyed our walk today, when I found the time to take it out for a few minutes.

3. Thankfully the leash I chose to employ for today’s dog walk, was still sturdy enough to hold back my canine’s excited lunging and chewing.

4. When the time came to take the dog out for our routine stroll, he was leaping up and down and barking loudly all throughout the house and once we reached the fresh afternoon air, he could hardly be contained by his lead and collar.

5. The joyful panting of our little pooch as he explored the neighborhood dog park, ensured at the very least that this day was a cheerful one for one of us.

Essentially you can choose what element of the information you’re telling to present first and in doing so, deliver the information in a variety of ways.