Children begin to babble and use consonant sounds between 6 and 12 months old. First words generally begin to appear between 10 and 12 months, along with ‘baby-talk’ or ‘jibber-jabber’. By 18 months, children should be able to use approximately 50 single words. As a child turns 2 years old, he will begin to combine words into 2-3 word phrases, such as ‘my ball’, ‘got it’, or ‘more please’. From ages 3 to 5 years, a child will begin to combine 3-5+ words into well formed sentences.