As a noun:
* The troop of scouts hiked through the forest.
* A troop of monkeys swung through the trees.
* The general ordered his troops to advance.
* The circus troop performed amazing feats.
As a verb:
* The soldiers were trooping through the streets. (meaning they were marching in a group)
* We trooped into the theater and found our seats. (meaning we walked in a group)
* The children trooped off to bed. (meaning they walked away in a group)
In a phrase:
* The troops were in high spirits.
* The troop morale was low after the defeat.
* The scout troop went on a camping trip.
Remember to choose the word "troop" that best fits the context of your sentence.