"I Know There's an Answer" is structured in a verse/refrain/verse/refrain/bridge/refrain pattern. Unusually, the verses are divided by an eight-bar A section ("I know so many people ...") and a six-bar B section ("I know there's an answer ...". According to music historian Charles Granata, "The coupling of an eight- and a six-bar passage to create a fourteen-bar verse is rare (most verses are eight, twelve, or sixteen bars long); in this case, the listener isn't aware of the verse's compositional irregularity because the tune is so well-written."