sentence correctness

[hela]

Dear teachers,
Would you please tell me if the English is correct here?

a) Both books/Both the books (?) /Both of the books you lent me are interesting.

b) Both books you lent me I found interesting? (correct or clumsy?)
“the object has been topicalized” what’s the meaning of “topicalized”?

c) I found both books you lent me to be interesting.
(do we normally insert the "to be" if the descriptive word does not immediately follow the noun it describes)

d) I found both books you lent me interesting.

e) Neither you nor your boyfriend wantsto see the relationship evolve.(is the word "evolve" appropriate here?)

Many thanks,
Hela

[Casiopea]

a) Both books/Both the books (?) /Both of the books you lent me are interesting.

All are English. "of" is often omitted, as is "of the". They're a given with "Both". That is, you can pick it up from the context.

Both of the books
Both the books
Both books

b) Both books you lent me I found interesting? (correct or clumsy?)
“the object has been topicalized” what’s the meaning of “topicalized”?

To place in the topic position, i.e., at the front of the sentence. The verb's object, along with its RC, has been topicalized:

EX: I found both (of the) books (that) you lent me (to be) interesting.

c) I found both books you lent me to be interesting.
(do we normally insert the "to be" if the descriptive word does not immediately follow the noun it describes)

"Normally" isn't clear. "to be" is there underlying; it's just not overtly realized. Again, this is another example of a form that can be picked up from the context. "to be" joins "interesting" with its subject "both books"; e.g., both books are interesting. I found them to be intersting. I found them interesting.

d) I found both books you lent me interesting.

It's English. And if you tell us why you're asking, we might be able to guide you further.

e) Neither you nor your boyfriend wants to see the relationship evolve. (is the word "evolve" appropriate here?)

"appropriate" isn't clear. "evolve" works in that context.

[hela]

Dear Casiopea, Thanks again!

I'm asking just because I found the construction "I found both the books" a bit odd. And I wanted to have more precisions as to how we can omit parts of a sentence without ruining its construction. There's no particular reason for it.

Now, as for the last sentence I just wanted to know if the word "evolve" was suitable there or would it be better to use "develop" or any other word.

Another question, please. Is there a difference between "each other" and "one another" ? Is "each other" used to speak about 2 pers. or things only and "one another" for more? Or something of the kind?

Best wishes,
Hela

[Casiopea]

You're welcome.

Here's a great source. Scroll down to "reciprocal pronouns".

http://grammar.ccc.commnet.edu/grammar/index2.htm

[hela]

Thank you very much, Casiopea!