The VERB TO BE (ser o tener) is a Primary verb in English along with Have and Do because they can function either as primary verbs like the rest of verbs (e.g. eat, sleep, write, etc.) or auxiliary verbs accompanying a main verb and acting as assistant in the tense as other auxiliary verbs (shall, will, etc.). They are conjugated as main or auxiliary verbs according with the number (singular or plural) and time (past, present and future with some modal verbs such as "will, may, would") and we must always place the subject before them in the affirmative and negative sentences except in the interrogative sentences where they are placed at the beginning. The verb To Be is used to form the Continuous or Progressive forms and the Passive voice in English (as well as their counterparts in French, Spanish, Italian, etc. and other European languages) Usually there are some doubts in the translation of the conjugated verb "To Be" because English does not differentiate betwe