How do roundabout in a sentence?

The junction is controlled by a roundabout.

1. your question 2. The roundabout spun as fast as it could3. The Sat-Nav told me to turn at the next roundabout4. My feelings are a bit like a roundabout, sometimes fast and sometimes slow

When it has a subject, verb, punctuation, capitalization, a predicate, and a complete thought. A sentence is a sentence when it is handed down by a judge (or a magistrate).

after the meal, the man was imbalace and fell to the ground.

A sentence is a complete clause with a subject and a finite verb. A sentence fragment is not a complete clause, but is part of a clause (often lacking the verb to make a full sentence). For instance,...