I still haven't found what I' m looking for...

This is a great song to revise the present perfect.

The present perfect is a verb tense that many Portuguese students have difficulty with.

Pay attention to the lyrics and try to memorize the sentences where the present perfect is used.

Look at these examples:

e.g. I have climbed highest mountains - An action that takes place at an indefinite past.

e.g. I still haven't found what I'm looking for - An action which started in the past but continues up to the present.

Whenever you study grammar, try to associate it to something you hear ... It's easier this way ...

For more information: http://esl.about.com/library/grammar/blpresperfect.htm