Summarize:

Because your hook is meant to be memorable, you should put it in the chorus so that it’s repeated as much as possible. Usually, musicians put the hook at the beginning or end of the chorus, or use it to bookend the chorus on both sides. The lyrics of your chorus should build off the hook and deal with the themes of the song in a vague way. The chorus of the David Bowie song “Starman,” for example, introduces the song’s hook, “There’s a starman waiting in the sky,” in the first line of the chorus. While the chorus might be vague, your verses should include specific examples and concrete imagery. Build on the themes introduced in your chorus with lyrics in the verse that give your listeners a more solid idea of what your song is about. In the first verse of “Take It Off,” for instance, The Donnas sing “I'm on my second drink/But I've had a few before/I'm trying hard to think/And I think that I want you on the floor.” Once you’ve set the rhythm and lyrical tone of your song in the first verse, it should be fairly easy to come up with your other 2 verses. Your other verses should add to the information introduced in the first verse, while keeping to the same rhythm and patter. In the second verse of “When Doves Cry,” for example, Prince sings “Dream if you can a courtyard/An ocean of violets in bloom/Animals strike curious poses” in the same rhythm as the first verse. A bridge is like a second chorus in your song: it deals with your themes in vague terms, but adds something new and unexpected that breaks up the monotony for your listeners. The bridge in “Barracuda” by Heart, for example, uses a different rhythm to stick out from the rest of the song: “‘Sell me, sell you’ the porpoise said/Dive down deep to save my head/You, I think you got the blues too.”
Build a chorus around your hook. Write the first verse of your song. Pattern the other 2 verses of your song after the first. Think about including a bridge.