What is the structure of the poem 'the road not taken'?

Robert Frost's poem has the structure of a lyric poem. If you think about it, this poem could be put to some music and be sung, just like song lyrics.

Um, it consists of four stanzas of five lines. The rhyme scheme is ABAAB; the rhymes are strict and masculine, with the notable exception of the last line (we do not usually stress the -ence of the difference). There are four stressed syllables pe line, varying on an iambic tetrameter base.