PAST TENSE

THE ARMERO TRAGEDY

Nevado del Ruiz

November 13, 1985

Armero, Colombia

On November 13, 1985, Colombia´Nevado del Ruiz, South America´most 

notherly active volcano, erupted close to midnight. The town of Armero,

fifty miles from Colombia´capital, Bogotá, was completely covered by mudflows,

killing 21.000 of its population of 28.700. In all there were 23.000 deaths, 5.000 injuries.

and the destruction of more than 5.000 homes.

Very often the past simple ends in ED (regular verbs)

Example:  I work in a travel agency now. Before that I worked in a shop.

                 We invited them to the party, but they decided not to come

Some  verbs double consonant when they end in vowel + consonant.

              Example:     Stop   -    stopped                             plan    -   planned         

                                 prefer  -      preferred                         Regret - regretted 

The verbs end in L have LL before ED 

              Example:    travel   -     travelled                           cancel    -   cancelled

The verbs end in a consonant + Y, changes  Y  for I and add ed

              Example:    study  -    studied                              carry  -  carried

But many verbs are irregular. The past does not end in ED. Example

                                    Be (am, is, are )                         Was -  were

                                    Write                                           Wrote

                                    Forget                                        Forgot

                                    See                                             Saw

                                    Go                                               Went

In questions and negative we use did -  didn`t + infinitive

Affirmative	Negative	Interrogative
You enjoyed the movie	You didn`t enjoy the movie	Did you enjoy the movie?    Yes .I did                                               No, I didn`t
They ate hamburgers	They didn`t eat hamburgers	Did they eat hamburger?    Yes, they did.                                              No they didn`t
She went to the park	She didn`t go to the park	Did she go to the park?    Yes, she did                                           No she didn`t