Presnt Perfect Tense

Present Perfect Simple Tense

Construction: have/has + 3^rd form of the verb

Example:

I have a cast because I have broken my leg.

Look, he has painted the wall, it looks all shiny and new.

My brother has finally repaired the sink, you can use it again. (Adverbs like 'finally' are said in between the auxilary and the main verb.)

We have to go home, our mum has prepared dinner for us.

I have done my homework, finally!

Present Perfect Progressive Tense

The Present Perfect Progressive Tense are used for actions or events that started in the past, have been lasting for some time and are (mostly) still going on. Most commonly they are used in combination with 'since' or 'for'.

Construction: have/has been + 3^rd form of the verb

Signal Words: since/for
 

--> The correct use of since and for
 

Examples:

I have been working on this sheet for over 30 minutes now.

Susan has been working in the company since last year.

He has been sitting at the bus station and waiting for the bus for over an hour.

Where have you been? I have been waiting since nine o'clock.
 

--> 'to be' is as usual not used in the progressive tense. Therefore you say: I have been here for hours. and NOT: I have been being here for hours.

--> How to chose between Past Simple and Pesent Perfect Simple Tense.