Colorful Ideas

Definition :
The text describes the way things are, with reference to a range of natural, man-made and social phenomenon in our phenomenon.

I have been writing...

Present perfect continues tense is used when :

 1. An action that has just stopped or recently stopped

We use the present perfect continuous tense to talk about an action that started in the past and stopped recently. There is usually a result now.

I / You / They / We have written...
She / He / It has eaten...


Present Perfect tense is used when :

express an action happened at an unspecified time before now. The exact time is not important.
You CANNOT use the Present Perfect with specific time expressions such as: yesterday, one year ago, last week, when I was a child, when I lived in Japan, at that moment, that day, one day, etc. We CAN use the Present Perfect with unspecific expressions such as: ever, never, once, many times, several times, before, so far, already, yet, etc
i.e. I have never been to Paris before. (telling experience)
     My English has really improved since I joined the English class. (change over time)
     My daughter has learned how to read (accomplishments)
     The rain hasn't stopped (an uncompleted action you are expecting)