I am confused with the usage of "have had" and "had had". When can I use them?

"have" and "had" too...

Ex: I had written this: (about something that happened a few months ago)

I have achieved a rank which gets me admitted...

An expert and a genius corrected this as:

I had achieved a rank that got me admitted...

I could have asked that expert, but I didn't find that person online whenever I came online... I wish that person could answer me!!

Quote:

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Originally Posted by Abhimanyu Pudi

I am confused with the usage of "have had" and "had had". When can I use them?

"have" and "had" too....

Ex: I had written this: (about something that happened a few months ago)

I have achieved a rank which gets me admitted...

An expert and a genius corrected this as:

I had achieved a rank that got me admitted...

I could have asked that expert, but I didn't find that person online whenever I came online...I wish that person could answer me!!!

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I'm good with grammar tenses (am an expert on a grammar site). Please tell me the entire sentence and sentences before and after.

Hey its you whom I was talking about...

Wondergirl, are you there?

I was eating lunch. I'm here now.

I just want to know when to use those words.

Today I came through a sentence:

He has had thin time too.

Why can't it be:

He had had thin time too.

* a thin time
I missed "a" in both the sentences

Quote:

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Originally Posted by Abhimanyu Pudi

I just want to know when to use those words.

Today i came through a sentence:

He has had thin time too.

Why can't it be:

He had had thin time too.

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I need the paragraph it's in.

Rohini : Raj appears quite prosperous. He is quite lucky.

Lasya : He has had a thin time too. Days were when he found it difficult to meet the expenses of his children's education.

I was learning some english expressions and I found it as an example.

Rohini : Raj appears quite prosperous. He is quite lucky. [present tense]

Lasya : He has had a thin time too. [past tense, conditional, action has occurred over a long period of time] Days were when he found it difficult to meet the expenses of his children's education. [past tense]

Doesn't "had had" fit into that sentence? It represents past tense.

Doesn't "had had" fit into that? It represents past tense.

Quote:

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Originally Posted by Abhimanyu Pudi

Doesn't "had had" fit into that? It represents past tense.

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No, it is the past before the past. It is not simple past tense, but more past than past.

Lasya : He has had a thin time too. [past tense, conditional, action has occurred over a long period of time] Days were when he found it difficult to meet the expenses of his children's education. [past tense]

Lasya: He had had a thin time too. [past perfect tense, action has ended] Days were when he found it difficult to meet the expenses of his children's education. [past tense]

Okay what about "have" and "had"?

I've studied many articles about him..

I think it should start with "I had" but I don't know the reason. Because it is past (more past)?
If it had occurred recently, then it has to be "I have", isn't it? Am I right?

Sorry, am I annoying you?

What is actually "conditional" ?

I have to write my application essays, SAT essay and TOEFL essay. So, I am incredibly worried particularly about these phrases and words.

Quote:

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Originally Posted by Abhimanyu Pudi

Okay what about "have" and "had"?

I've studied many articles about him..

I think it should start with "I had" but I don't know the reason. because it is past (more past)?
If it had occurred recently, then it has to be "I have", isn't it? Am i right?

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Right.

I have studied many articles about him. (it means an action that started in the past and continues now, or has the possibility of continuing now.)

I had studied many articles about him. (action is finished)

I had had (past before the past) many boyfriends before I got married (the past). The past must be mentioned before you can tell about the past past.

Oh okay... now I understood what is past before past exactly.