Present perfect is used to express actions already made in the past. We use it for talking about experiences. For example, I have traveled for many countries. That indicates that I have done that. It is not important whem, but it is important to know that I have done that.
In order to build such sentences, we use the next structure:
Personal pronoun + have or has (not) + participle.
Example: I have traveled all over the world.
Present Perfect with since and for
Often we need to connect the past with the present. That means that an action started in the past can be continued in the present. For example, I started to study English in 2007 and I continue studying it in 2017. I can say it using the present perfect and the prepositions since and for.
I have studied English since 2007 or I have studied English for ten years.
Since
This preposition is used to highlight the time when an action was started.
Since yesterday, since last year, since I was born, etc.
I have been sick since yesterday.
For
This preposition is used to talk about how long an action was carried out.
I was working on this project for 10 months.
Questions with present perfect
What have I done?
Example: in the song "What I've done" the sentence has an emotional tint. It is used present perfect for expressing this idea stronger.
Present perfect progressive
The present perfect progressive is used for talking about actions that have been developing. If I want to say, what I have been doing, it is necessary to use this structure>
Personal pronoun + have or has + been + gerund.
Example> I have been reading this book all the day.
In the case of the negation it is necessary to put "not" after have. I have not been working.
As it is known, when we have a question, it is necessary to switch the order and the auxiliary verb Have is at the begining of the sentence>
Have you been reading this book all the day?
In order to build such sentences, we use the next structure:
Personal pronoun + have or has (not) + participle.
Example: I have traveled all over the world.
Present Perfect with since and for
Often we need to connect the past with the present. That means that an action started in the past can be continued in the present. For example, I started to study English in 2007 and I continue studying it in 2017. I can say it using the present perfect and the prepositions since and for.
I have studied English since 2007 or I have studied English for ten years.
Since
This preposition is used to highlight the time when an action was started.
Since yesterday, since last year, since I was born, etc.
I have been sick since yesterday.
For
This preposition is used to talk about how long an action was carried out.
I was working on this project for 10 months.
Questions with present perfect
In order to ask a question using Present Perfect, it is necessary to respect the next order:
Have + personal pronoun +participle + rest of the sentence.
Example: Have you ever danced with the devil by the pale moonlight?
Example: in the song "What I've done" the sentence has an emotional tint. It is used present perfect for expressing this idea stronger.
Present perfect progressive
The present perfect progressive is used for talking about actions that have been developing. If I want to say, what I have been doing, it is necessary to use this structure>
Personal pronoun + have or has + been + gerund.
Example> I have been reading this book all the day.
In the case of the negation it is necessary to put "not" after have. I have not been working.
As it is known, when we have a question, it is necessary to switch the order and the auxiliary verb Have is at the begining of the sentence>
Have you been reading this book all the day?
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