LLLLLLLLL. LLLLLLLL LLLLLL
Whom is objective, use it when describing the direct object, indirect object or object of a preposition. It should be used in place of him or them.
It is true that Sonnet 73 is written in iambic pentameter. All of Shakespeare's sonnets are written in iambic pentameters, which means that an unstressed syllable is followed by a stressed one (iambic), and that there are ten syllables in each line (pentameter - penta means 5, meter consists of two syllables).
