When something absolutely has to be done and cannot be put off, use the adjective imperative. Imperative is from Latin imperare to command, and its original use was for a verb form expressing a command: Do it! is an imperative sentence. It's still used that way, but it's more commonly applied to something so pressing it cannot be put off: Hiring new workers has become imperative..
1 A tandem (dual) axle utility trailer starts at $1,200-$3,000 depending on size and weight capacity, and it can cost $4,000-$7,500 or more for commercial-quality utility trailers.
For example, RVTrader.com has a variety of Airstreams ranging from as little as $9,500 to as much as $105,000. What is going to be included? Created from a heavy aluminum, most Airstream trailers are going to be 22 to 31 feet long. Depending on the model, the average weights can be between 4,500 and 8,800 pounds.