PRESENT PERFECT: FOR, SINCE.

Using the "present perfect" we can define a period of time prior to the present moment, considering either its duration, in which case we use "for" + temporal period, or its beginning or starting point, in which case we use " since" + specific moment.

For + period of time

For six years, For a week, For a month, For hours, For two hours.

Ex:

I have worked hare For five years

Since + specific moment

Since this morning, since last week, since yesterday

Ex:

I have worked here Since 2000

PRESENT PERFECT WITH "FOR"

Examples:

We have taught at this school for a long time
They have been at the hotel for a week
She has lived here for twenty years

PRESENT PERFECT WITH "SINCE"

Examples:

We have taught at this school since 1999
They have been at the hotel since last monday
She has lived here since 1984

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FUTURE TENSE: "GOING TO" vs "WILL"

When to use "GOING TO" The future tense with "going to" is most commonly used in spoken language when you want to refer to the immediate future, that is, to something that is about to happen. Ex: * She is going to pay with a credit card * I´m going to drop off my prescription over there. It is also used to talk about intentions or plans to do something: Ex: *I´m going to learn English FORM It is formed with the verb "to be" conjugated for the corresponding person, followed by "going to" and the base verb. TO BE + GOING TO + VERB When to use "WILL" The future tense with "will" is used to talk about decisions that are made while speaking. Ex: * I need to get my medicine, I will go to the pharmacy tonight * I need some cash. I will pay with my debit card and ask for cash back It is also used to say predictions of a general nature. Ex: * I´m sure it will rain tomorrow *Camilo Perez will win the election. FORM WILL + VER...

SIMPLE PAST.

The "simple past" is used to talk about an action that ended in a time before the current one. The duration is not relevant. The time in which the action takes place can be the recent past or the distant past. In the simple past there are regular verbs and irregular verbs. The "simple past" is used to refer to when something happened, so it is associated with certain temporary expressions that indicate: A certain times: last week, when i was a child, yesterday, sex weeks ago. for example: Yesterday, i arrived in Geneva We saw a good film last week She finished he work atseven o´clock I went to the theatre last night On indeterminate time: the other day, ages ago, a long time ago people lived in caves a long time ago. for example: She played the piano when she was a chold FORM Formation of the "simple past" with regular verbs AFFIRMATIVE subject + raíz + ed I skipped. ...

Sheila Ayala.

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