There are differences between how the verb "to be" is expressed in the simple present tense in Portuguese and English. In Portuguese, there is no plural form to express existence, unlike in English. The affirmative form uses "there is/there are" followed by the verb. The negative form uses "not" after "is/are" and the interrogative form places "is/are" before "there".
2. FORMA AFIRMATIVA THERE IS/THERE ARE EXPRESSA O VERBO HAVER EM PORTUGU?S. EM NOSSO IDIOMA N?O H? PLURAL PARA EXPRESSAR QUE ALGO EXISTE, O QUE N?O OCORRE EM INGL?S. THERE IS A BLUE CAR OVER THERE. THERE ARE TWO RED CARS OVER THERE.
3. FORMA NEGATIVA NA FORMA NEGATIVA USA-SE NOT AP?S IS/ARE: THERE IS NOT A BLUE CAR OVER THERE. THERE ARE NOT TWO RED CARS OVER THERE.
4. FORMA INTERROGATIVA NA FORMA INTERROGATIVA IS/ ARE ? COLOCADO ANTES DE THERE: IS THERE AN ENGLISH BOOK ON THE SHELF? ARE THERE BOOKS ON THE SHELF?