yes, correct, with the exception it has no punctuation
"He could not have been there" is the correct sentence. It conveys the idea that he was unable to have been at the specified place.
No. "Him and I have been together." is not correct. The word him is an object pronoun, not a subject pronoun. The proper form of the sentence is "He and I have been together."
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
The punctuation for the sentence is " No, I have never been to Europe."
"Where was Jack yesterday" is correct but the sentence needs to end with a question mark (?), not a period (.). He might have been seeing a doctor is the correct way to write the second sentence.
No - the sentence 'Had never been experience' is not a correct sentence.
No, that sentence is not correct. That sentence should be: If you have been in love for 6 years.
"He could not have been there" is the correct sentence. It conveys the idea that he was unable to have been at the specified place.
Being able is the correct version of the sentence. You can use it as a fragment of any sentence.
The correct sentence is: "Have you ever traveled before?"
A central fund for EGMM has been opened.
Yes, "How long have you been living in Oxford?" is a good sentence.
The use of the word in the sentence you quote is in the sense of having been perceived as being rude to an elder. So yes, the sentence is correct.
Your account has not been generating much traffic.This sentence is grammatically correct. It is negative present perfect continuous.
No. "Him and I have been together." is not correct. The word him is an object pronoun, not a subject pronoun. The proper form of the sentence is "He and I have been together."
The punctuation for the sentence is " No, I have never been to Europe."
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."