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B1 Intermediate
B1 grammar contents
B1Prepositions

For, since and from

Express duration and starting points accurately with for, since and from.

Overview

What this grammar does

Express duration and starting points accurately with for, since and from.

Form and rules

How it works

1

Use for + period of time: for three hours, for a long time.

2

Use since + starting point with a perfect tense for a situation continuing to now: since Monday, since I moved here.

3

Use from to mark a starting point when the end is stated or implied: from Monday to Friday, from 9 until 5.

4

Do not use since with a finished past duration: I lived there for two years, not since two years.

5

Since can introduce a clause: I've known her since we were children.

A closer look

Meaning and use

Do not use since with a finished past duration: I lived there for two years, not since two years.

Since can introduce a clause: I've known her since we were children.

Examples

See the pattern in complete sentences

I've worked here for six years.

She's lived here since 2020.

The office is open from nine to five.

I studied in Madrid from 2018 to 2019.

We've been friends since we met at school.

Common mistakes

What to avoid

I've been waiting since forty minutes.
I've been waiting for forty minutes.

Forty minutes is a period of duration.

He has worked here for January.
He has worked here since January.

January is the starting point of a situation continuing now.

Ready to practise?

The test combines multiple choice, gap completion, error correction, and sentence building so students have to recognise and produce the grammar, not simply reread the rule.