What makes a sentence a sentence? It's easy to goof up on this grammar rule. The tricky part about sentences is that length is unimportant, but instead, it's the parts of speech that make a sentence a sentence. A string of words must contain both a subject and a predicate, or else it's not a sentence. Get your child familiar with sentences with this fun worksheet that asks her to practice labeling each group of words as "incomplete" or "complete."

Need more grammar help? Print out the rest of the worksheets in this series.