How can you use grumbled in a sentence?

Here are some sentences using "grumbled" in different ways:

* Complaining: "He grumbled under his breath about the long line at the coffee shop."

* Disagreement: "She grumbled about the new policy, but agreed to follow it."

* Expressing Displeasure: "The old man grumbled about the noise from the construction site."

* General Annoyance: "After a long day at work, she grumbled about the chores that awaited her."

* With Humor: "The dog grumbled and whined, but he eventually ate his dinner."

Let me know if you'd like more examples or want to explore the specific context you have in mind!