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Hi everyone. So, today we're going to have another look at present perfect.

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Now, if you remember, one of the reasons that we use present perfect is to talk about experiences.

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But another way is to talk about an action that started in the past and continues up until the present.

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Now, we can use words like FOR or SINCE with the present perfect to talk about the time that has passed since the action happened.

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So, for example, I have lived in Spain for 16 years.

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Or, I have lived in Spain since 2004.

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We have been at home now for 5 weeks.

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We have been at home since the 14th of March.

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Can you see the differences in the sentences with for and since?

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We use for when we can count the time that has passed.

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For two days, for four hours, for nine months.

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For example, I haven't eaten for five hours.

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I'm so hungry.

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Miss Helen has taught English for 21 years.

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And we use since when we look at the starting point of the action, when it began.

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Since last month, since February.

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So, for example, I haven't eaten since breakfast.

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Christina has taught English since 2007.

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Julia has worked

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in Vida de Guadarrama since

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last September

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ok

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great