What are some examples of consonance in lines 1 and 2? What are examples of assonance in line 1 and 2?
Consonance can be seen in the repeated "g" sounds:
Do not go gentle into that good night,
Old age should burn and rave at close of day;
G sounds are found in go, good, and age, and a different g in gentle.
Assonance can be found in the repeated/related vowel sounds—the o of old, of, close, the o of do and go, the i of in and night.