"I bought this thermos for free" Appears beautifully normal to me. "That thermos was for free" sounds bad: I would just say "That thermos was free." herisson Aunque no encuentro nada en el DRAE ni en el DPD on line, me animo a afirmar que las comillas y el apóstrofo https://fun-house-puzzle-game25813.mybuzzblog.com/18326825/the-play-grimelda-fun-house-diaries