Hi birdeen's call
According to what you said, I understand that the phrase "the first textile mills to be established in the US" [STRIKE]will[/STRIKE] can be rewritten to make a complete sentence[STRIKE], is [/STRIKE] in the following way.
Well, in this case, it hid "there were", and "be established" is in the passive voice. (It's not a very good sentence, but I'm not sure how to correct it.) So it became "The first textile mills - to - be established - in the US"
Did I [STRIKE]thought[/STRIKE] think correctly?[STRIKE]?[/STRIKE]
/Did I [STRIKE]have[/STRIKE] make [STRIKE]some[/STRIKE] any grammatical mistakes in my post [STRIKE]about grammar[/STRIKE]? I think I did because I'm not good at English. Could you check it for me, please?
Regards.
I have made some corrections in your post, as you asked.
I'm not sure if I understand your questions correctly, so I will try to explain your original sentence.
We have this sentence:
The first textile mills to be established in the US were located in New England.
It can be rewritten this way:
The first textile mills that were established in the US were located in New England.
We are discussing these two phrases:
1) The first textile mills to be established in the US
and
2) The first textile mills that were established in the US
Neither of these two phrases is a sentence.
1) The first phrase is not a sentence, because it doesn't have a finite verb.
2) The second phrase is also not a sentence, even though it has a finite verb: "were". It has a finite verb, but it is not a sentence, because there is no predicate for
the first textile mills that were estabilished in the US. The predicate (
were located in New England) has been removed. A sentence must have a predicate.
That were estabilished in the US is a
clause.
You were also asking about the passive voice in your sentence. In the original sentence, the passive voice occurs twice. I have highlighted those occurrences below.
The first textile mills to be established in the US were located in New England.
For the first time, the passive voice occurs in the subject. For the second time, the passive voice occurs in the predicate.
In the rewritten version of the sentence, the passive voice also occurs twice.
The first textile mills that were established in the US were located in New England.
Again, for the first time, the passive voice occurs in the subject. For the second time, the passive voice occurs in the predicate.