UNIT 9B: Present Perfect with FOR or SINCE.

Hello everybody!

In this site you will find a clear explanation on the usage of FOR / SINCE in Present Perfect. 

Click on the second link and practise !

http://www.edufind.com/english/grammar/present_perfect_for_since.php
http://www.eclecticenglish.com/grammar/PresentPerfect1D.html

Present Perfect + for and since

PRESENT PERFECT + for, since

Using the present perfect, we can define a period of time before now by considering its duration,with for + a period of time, or by considering its starting point, with since + a point in time.

UNIT 9A: Second Conditional Sentences

Hi there!

Please click below and find a detailed explanation + activities to revise 2nd Conditional Sentences.

http://www.perfect-english-grammar.com/second-conditional.html

The Second Conditional

The second conditional uses the past simple after if, then 'would' and the infinitive:

• if + past simple, ...would + infinitive