An irregular verb is a verb that does not have regular forms, that is forms formed by stem+ed, such as for example:
Walk+ed: the regular past tense of walk is walked.
Here the irregular verb is "go" - the correct answer is D. I go, I went, I will go.
The other options show regular verbs.
In "Sonnet 18'', the speaker describes how the person he addresses is more sweet, temperate and fair than the beauty he sees in nature. He even notes how the sun is sometimes dim and how nature’s beauty is sporadic. And in <span> “Sonnet 147,'' the speaker realizes he is in over his head in love. He compares love to a disease, a fever that turns him mad and from which he cannot escape.</span>
I don't think gypsy should be capatilized, but I am not sure. Hope this helped!
-Twix