Formal structure of  "This Boy"
Intro (verse) 0:00-0:09
Verse 1 0:09-0:26
Verse 2 0:35-0:52
Middle 8 1:02-1:28
Verse 3 1:28-1:44
Coda (verse) 1:54-2:15
Comments: You could consider the verse and chorus together as just a verse. Though the energy levels are not significantly higher, the stopping of the backing instruments (at 0:26, 0:52, and 1:44) highlights this section enough to justify analyzing it as its own structural section. That combined with the lyrics being very similar (though not always identical) prompts me to conclude that it is indeed a chorus and not part of the verse.
This blog is a workshop for developing my analyses of The Beatles' music.