At 17 months here’s a sample of V’s language skills with making a sentence:

ka-te-ka-te-ka-te (the sound of a chicken), uh-oh, batz (sound for meaning ‘fall down’)

She was playing with a little chicken figure in the bathtub when it fell over the side. She repeated this sentence about 3 times before I paid close attention to what she was saying. Funny… .