¡PAST SIMPLE!


The Past simple of the regular verbs is formed adding 'ed' to the infinitive.
The negative and interrogative forms are constructed by the auxiliary 'did'.


Afirmative: I played in the garden.
Negative: I didn't play in the garden.
Interrogative: Did I play in the garden?

Answers: yes, i did - No, i didn't


-The verbs ended in - e, they omit vocal esra in front of -ed:
Shave- Shaved.
-The monosyllabic verbs ended in brief member + simple consonant duplicate the final consonant in front of- ed.
Rub- Rubber.
-The verbs ended in consonant + and they change it 'y' for 'i' and add -ed.
Hurry-Hurried.
-But ended in member + and they follow the general rule.
Stay-Stayed.
-The verbs of 2 or more syllables ended in brief member + simple consonant duplicate the consonant ultimately if the accent falls down in the last syllable.
Submit- Submited.


When is used the past continius?
-When you speak about past actions that took place in a certain moment.
-On having narrated a sequence of past facts.











¡PAST CONINIUS!


Past continius is formed with past simple of the verb to be + the verb principial ended in -ing.


Afirmative: I was sleeping in the bed.
You were sleeping in the bed.
He/she/it was sleeping in the bed.
We/You/They were sleeping in the bed.

Negative: I wasn't sleeping in the bed.
You weren't sleeping in the bed.
He/she/ir wasn't sleeping in the bed.
We/you/they weren't sleeping in the bed

Interrogative: Was I sleeping in the bed?
Were you sleeping in the bed?
Was He/she/it sleeping in the bed?
Were We/you/they sleeping in the bed?

answers: Yes, i was - no I wasn't
Yes, you were - No, you weren't
Yes,. He/she ir was - No He/She/it wasn't
Yes We/You/They were - No, We/You/They weren't.


When is used the past continius ?
- To describe an activity that happened in a specific moment of the past.
-To refer to a past action that was developing when it was interrupted by other one.
-To refer to two actions that were developing in a simultaneous way in the past.



credits:
http://www.englishpage.com/verbpage/pastcontinuous.html

http://www.englishpage.com/verbpage/simplepast.html

-The destrucion of forest.

At present, the forests that still stay cover scarcely a fraction of the area covered by forests only hundred years behind. And the speed of destruction is increasing. Quite, up to the effects of the climatic change, they are threatening the existence of the last natural remaining forests.

When a forest is cut and new trees are sowed a plantation of few classes of trees does not give support to so many forms of life as a natural forest. These plantations will not produce a lot of wood of the highest quality. The trees in the natural forests have been growing during hundreds, and sometimes thousands, of years. The sowed trees are cut a few years after having being planted.

The human beings have been destroying the forests per centuries, but the rate of destruction has been increasing so rapidly that some forests will not last for much any more time.

The trees are cut not only by his wood and other products, but the area can be turned then for the cattle and in fields to feed a number of persons. As the cities become big, the forests are eliminated to allow the construction of housings, malls.

Nowadays only they preserve 20 % of the primary forests that were covering the terrestrial surface; nonetheless(though) there stay two third parts of the terrestrial biodiversity and are one of the major sinks of carbon of the planet.

http://www.jmarcano.com/nociones/bosque/threat.html

http://www.elecolo.com/?p=1871