obstructing

"The building of the bridge will be completed in a couple of weeks."

"The divers encountered a huge school of mackerel."

"I always try not to interfere with other people’s personal affairs."

"The heavy box fell and fallen to the floor. "

"A big obstacle to understanding the manual was that it had been poorly translated from the Japanese."

"We spent the weekend hiking in the mountains."

"The fallen tree obstructed the road, making it impossible to pass. "

"The construction project suffered a significant retard due to the unexpected heavy rains. "

"The heavy rain impeded the children's walk to school this morning. "

"A big obstacle to understanding the manual was that it had been poorly translated from the Japanese."

"Testing for the new antidote is currently in progress."

"She struggled to play the difficult passages."