The Present Perfect Tense is almost the toughest tense for the learners of English though it is quite simple to get used to easily through practice as it is a very common tense in the language.
This tense is used to show that an action is completed or 'perfected' by now. We use it to indicate that we are not interested in "when" the action started by rather on its completion and its effect. If we are interested in the time when the action began, the Past Simple would better be our tense. Therefore since the present state of completion of the action that interests us, we should use the present perfect.
+ Past participle of the verb
N.B: You need to learn your irreglar verbs for the past participle perfection.
I have seen that film. (when? that's not important here)
She has been there, too.
They have bought the house.
I haven't read the book yet.
He hasn't done his homework yet.
We haven't decided where to spend our holidays yet.
Have you finished yet?
Have you had your breakfast yet?
What has she done to her toys?
Have they been to the cinema?
JUST & ALREADY
If we want to show that the action was completed a few minutes ago, we need to use the adverb "Just" as in:
I have Just finished eating.
On the contrary, if we want to show that the action was completed long ago and we don't want to talk or don't care about the time, we use the adverb "already" as in:
The boys have already come back from school. He has fixed the car already.
FOR & SINCE
... sorry for the inconvenience. We will come back soon!
Listen to the song and write down the 4 sentences in the present perfect