UNIDAD I. TIEMPOS VERBALES
Verb tenses
                                               (Tiempos verbales)
Una frase verbal es aquella cuyo núcleo es un verbo; ésta puede estar formada por un verbo ordinario (lexical) o por uno o más verbos auxiliares y uno principal (lexical).
       
  Ejemplo:
Ø     The engine functioned perfectly during the test flight.
Ø      The pilot is checking the aircraft before flying.
Ø     Those aicrafts have been operating since 1970.
    
Tiempos verbales
(Verb tenses)
       
 En Inglés los tiempos verbales se dividen en simple y compuestos.
                   
                                                    *Presente simple:  do-does
                                                      (Simple present)  do not- does not
Ø     Simples:    
                                                   * Pasado simple: did -did not
                                                      (Simple past)
                                               
                                                   * Futuro simple:  will-will not
                                                     (Simple future)
                                                               Progresivos o Contínuos.
                                                  *Presente Progresivo: To Be + v+ ing
                                                  *Pasado Progresivo: To Be + v + ing
Ø     Compuestos:                  *Futuro Progresivo:  To Be + v + ing
              
                                                               Perfectos:
                                               *Presente Perfecto: have + v + en
                                              *Pasado Perfecto:  had + v + en
                                              *Futuro Perfecto:  will have + v + en
      
•         Para formar los diferentes tiempos verbales en Inglés se hace necesario el uso de verbos auxiliares.
Recordemos:
•          Verbo auxiliar (auxiliar verb) es el que “ayuda” a formar un determinado tiempo verbal (verb tense) y verbo lexical (lexical verb) es el que da significado o acción a la oración.
•        Ejemplo: Will you travel next weekend?
                  They work in Caracas
Veamos algunos ejemplos:
Presente simple
•          The pilot checks the aircraft before flying.
•           Do you go to church?
•           We don’t work on Sundays
Pasado simple
•         The mechanic checked the aircraft.
•         Did you go to the church?
•         We didn’t work on Sundays.
Pasado simple
•         The mechanic checked the aircraft.
•         Did you go to the church?
•         We didn’t work on Sundays.
Futuro simple
•         The mechanic will check the aircraft.
•         Will you go to the church?
•         We will not work on Sundays.
Presente progresivo
•         The mechanic is cheking the aircraft.
•         Are you going to the church?
•         We are not  working on Sundays.
Pasado progresivo
•         The mechanic was checking the aircraft.
•         Were you going to the church?
•         We were not working on Sundays.
Futuro progresivo
•         The mechanic will be checking the aircraft.
•         Will you be going to the churc?
•         We will not be working on Sundays.
Presente perfecto
•         The mechanic has checked the aricraft.
•         Have you gone to the church?
•         We have not worked on Sundays.
Pasado perfecto
•         The mechanic had checked the aircraft.
•         Had you gone to the church?
•         We had not worked on Sundays
Futuro perfecto
•         The mechanic will have checked the aircraft.
•         Will you have gone to the church?
•         We will have not worked on Sundays.
Observemos los siguientes verbos:
  check    checked
  work        worked
  go            gone
 
        En Inglés existen verbos regulares y verbos irregulares.
•         Verbos regulares
            Agregan la partícula ed a su base para formar la forma verbal en pasado y pasado participio.
            Ejemplo: work -  worked – worked
•         Verbos irregulares
             Cambian de forma para en pasado y pasado participio.
             Ejemplo: buy - -bought - bought
Let’s practice
Identifique  el tiempo de la frase verbal en las siguientes oraciones.
•         That aircraft flew during 9 hours. It needs maintenance.
•         The new helicopter system has been designed in Russia.
•         The superviser took a wrong decision.
•         The aircrew is having a meeting before flying to Europe.
•         Some new aeronautical technicians are working in La Carlota.
•         This kind of aircrafts has operated in our country for many years.
•         While the engine was functioning, all the lights of the panel were on.
•         Every weekend they travel to visit their families.
•         It has been out of service due to the lack of the small parts coming from the abroad.
•         Stability means fixedness or equilibrium.
•         You will want to check the propeller operation before take-off.
•         The head light flashes immediately after the failure is produced.
•         Normally the factory will include the original equipment list as part of the Weight and Balance Form.
•         While the propeller was functioning, the panel light was on.
•         The pilot has taken a complete look of the airplane prior to fly.
Traduzca el siguiente texto
         Basically, in any system, you’ll have a tank drain for each tank and a drain at the fuel strainer.
          Almost all kind of airplanes have both a main and an auxiliary tank for fuel. It will prevent the airplane gets a lost of fuel during the flight. Some manufacturers would prefer to have all the fuel just in one tank but it is impossible from either a structural or a space standpoint for large airplanes.
 
Lea el siguiente texto y subraye las frases verbales presentes e indique el tiempo. luego traduzca sòlo la frase verbal.
Military aircraft maintenance - A new concept.
A substantial maturing of maintenance philosophy has occurred in the air transportation industry with introduction of the modern large wide-body airplanes. Application of that new philosophy in a military environment is both feasible and practical. With due consideration of the large and growing expenditures required for aircraft maintenance, and a desire to reverse unfavorable cost trends, the U.S. Navy has formed a team to design, develop, and implement advanced maintenance plans for two first-line weapon systems. New maintenance plans have been developed and are now being implemented. Early results indicate substantially reduced maintenance cost, better-operating airplanes, and significant improvement in aircraft availability.
 

