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Try this listening with all past tenses...

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Try this listening with all past tenses...

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Start studying Discourse markers. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

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Meaning and use

The present perfect is often used to talk about situations that started in the past and are continuing now. We sometimes use the present perfect in a question with how long to ask about how long a present situation has continued.
How long have Sasha and Tanya been married?
We talk about how long using the words for and since.

For = throughout (a period of time).

Since = from (an exact point in time) until now.

We can also use present perfect + since + past simple.

Form

The present perfect is made with subject + have/has (positive) or haven't/hasn't (negative) + past participle.

For is used with a length of time.

Since is used with a specific point in the past.

for: ten minutes, one hour, two days, a week, three years, a long time
Positive Negative Question
since: 10 o'clock, Friday, November, 2013, Easter

Take note: present simple and present continuous

We cannot use the present simple or present continuous with for and since.

CORRECT: I've known him for ten years.

Take note: present perfect / present perfect continuous
Take note: present perfect / past simple
With verbs like work and live, which can describe permanent or temporary situations, we usually use the present perfect + 'for' / 'since' for a long period of time. For a short period, we use the present perfect continuous.
Spoken English
If a situation is finished, we use the past simple + 'for', not the present perfect:

In informal writing and in speech, we often use a contraction with the auxiliary verb.

in Amsterdam for twelve years.

When you listen to someone using a sentence with for +a period of time, listen carefully to the verb. It is sometimes difficult to hear the difference between, for example, I've lived in New York for five years and I lived in New York for five years, but it makes a big difference in meaning. It tells us whether the speaker still lives there or not.

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BBC Learning English - Course: lower intermediate / Unit 12 / Grammar Reference

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The present perfect is often used to talk about situations that started in the past and are continuing now. We sometimes use the present perfect in a question with how long to ask about how long a present situation has continued. How long have Sasha and Tanya been married?

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Pre-Intermediate Grammar | Past Simple or Present Perfect Gap Fill | esl-lounge Student

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CONTINUE looking at the past tenses with this link

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CONTINUE looking at the past tenses with this link

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http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-7/session-2

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FIRST - Use this to revise the past simple

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FIRST - Use this to revise the past simple

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http://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-6/session-2

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Complete the sentences with the correct form of the adjective in brackets

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Slides explaining Comparative and superlative rules

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Slides explaining Comparative and superlative rules

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http://www.slideshare.net/guest1639c2/comparative-and-superlative-adjectives

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What disasters are mentioned?
Which countries are they associated with?

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Try the exercises to advanced level - Click on the link below
http://www.englishnumber.com/