If that is the case, he might still be sleeping.

He was obstructing the way in the corridor.

He was obstructing my progress.

Not everyone necessarily speaks English.

Toyosaburo is my best friend.

I spoke to the clerk to inquire about the details of the product.

He always acts with a sense of urgency.

He was playing alone in the park.

He explained the difficult math problem to me clearly.

He continues to search for the phantom island.