He cannot tell wool from cotton.
Kare wa u-ru to men no kubetsu ga tsukanai.
he; him; his; boyfriend
topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
distinction; differentiation; classification
indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
to be lit (e.g. electricity comes on); to be lighted; to catch fire