onance or consonance in the sonnet 8?

The best way to hear onance (the repetition of vowel sounds) and consonance (the repetition of consonant sounds) is to read the poem aloud line by line. You'll find a lot. For instance, line 3 repeats the "vst" consonant sound in "lov'st" and receiv'st." Line 5 repeats the "oo" sound in "true" and "tuned." There are quite a few other examples.