I have some doubts in these sentences. Please help me with this
1)say the same thing twice over.
I am not sure about the usage of 'over' here. Isn't the sentence " say the same thing twice" is complete in its own sense?

2) I know him best or I know him well. I know him very well.
Which one is correct ? And why the other is wrong?

3) Is there no later news than last week?
Is it correcr ? plz explain .

4)Elder is used only of persons.
I have read this sentence in a grammar book. I am confused about the use of 'of ' here. Isn't 'with' a better option and how does it differ from 'of' in here.
Hello ElCid

I'm an English learner from Japan. I know I myself am not good at English. But if you don't mind, I'd like to try to answer your question. Maybe I'll make many mistakes in the answer, but I'm sure in this case our teachers come to correct them. So please allow me to do my try. OK?
1) Say the same thing twice over.

I agree with you that this 'over' has almost no sense. But 'twice over' seems a collocation often used. (EX) He read my typescript twice over. (EX) They painted the wall in white thrice over.
2) I know him best or I know him well. I know him very well.

'I know him well' means 'I am well acquainted with him' but sometimes it means 'I and he have a special relation (= be in love)'. I don't know much about the phrase 'I know him best'. I feel your mother or your husband/wife might say 'I know him best'. But I think, in cases other than that, people would rarely say 'I know him best'.
3) Is there no later news than last week?

I feel this sentence is grammatically wrong, but I can't explain the reason well. I would say in this case rather: 'Have you got any news since last week?'
4)Elder is used only of persons.

This 'of X' can be paraphrased as 'concerning X', 'about X', 'with regard to X' or 'in reference to X'. As I'm an English learner, it's not easy for me to explain this kind of usage of 'of'. But please think about the phrases like 'think of X', 'consider of X', 'talk of X', 'hear of X', and 'speak of X'. In these phrases, the verb is intransitive, nevertheless 'V(=verb) of' functions as a transitive phrasal verb and X works as the direct object of 'V of'.

2) I know him best or I know him well. I know him very well./quote>
I think that to say "I know X best", you need at least two individuals...
EG: "I'm aquainted with all the members of the staff, but I know Mr Paco best", or "it's Mr Paco I know best".
What do you think?
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Hi Elcid,

Re (3): informally, you would probably hear this as you have written it. To amend some of the minor problems, however, I would cast it as:

'Is there no news more recent than last week's?'

This solves the difficulties of 'later/latest' and the genitive.
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Thanks for posting me a reply.
I have taken the sentence 3 from a grammar book. It seems a little awkward sentence to me thats why i asked.

could you please elaborate on other 3 sentences also.
I think Paco's pretty well covered them all.

'I know him best' needn't be a close relative, but merely someone who is thinking that s/he knows him better than all the other people who know him. Because we can't actually identify how well others know a mutual acquaintance, we would more likely say 'I know him well'-- making this the commoner expression. If we get angry, we might more strongly assert, 'I know him best!'