The given text is a fragment, not a complete sentence.
The given text, "Since the weather forecast is beautiful this weekend," is a phrase fragment. It starts with a subordinating conjunction ('since') but does not have a complete subject and verb. To make it a complete sentence, it should be rephrased or combined with another phrase or clause.
The given statement, "Since the weather forecast is beautiful this weekend," is a phrase fragment rather than a complete sentence. This is because it lacks a subject-verb relationship necessary to express a complete thought. In order to make it a complete sentence, you could add a subject like "I" or "We" at the beginning and a corresponding verb, such as "am going hiking" or "plan to have a picnic," at the end.
