* Simple: The fallen tree obstructed the road, forcing drivers to take a detour.
* Figurative: His arrogance obstructed any possibility of a meaningful conversation.
* Formal: The defendant was accused of obstructing justice by refusing to answer questions.
* Passive voice: The view of the mountain was obstructed by the tall buildings.
Let me know if you'd like to see more examples or need help with a specific context!