CSET Multiple Subject Subtest 3 Practice Test 2026 - Free CSET Practice Questions and Study Guide

Language development at 18–24 months typically includes combining words into two-word phrases, like “mommy eat” or “more juice.” This telegraphic stage reflects rapid vocabulary growth and the beginnings of basic syntax; full grammar and function words haven’t yet developed, so sentences remain short and meaningful rather than complete. The single-word stage happens earlier, around the end of the first year, while understanding grammar relationships and using articles like the, a appear later, as children’s speech becomes more complex in the preschool years.