Language Learninghttp://www.brighthub.com/education/languages.aspxenLesson Plans: Degrees of Politeness with "Deber," "Poder" and "Querer"http://www.brighthub.com/education/languages/articles/15560.aspxTue, 18 Nov 2008 19:57:35 GMTb133e95a-c263-4882-8f2a-b24547eff78e:15560tricornio357These three verbs, and these three alone, when used as helping verbs and depending on the tenses and moods used, convey no difference in meaning but a great difference in their tone as indicators of politeness in Spanish. Present, Conditional and Imperfect Subjunctive as Indicators of Politeness with These 3 Verbs Saying "por favor" is gr...