Student or Learner
Hi. I have a question.
''It is fine for me to make sacrifices for you.''
is= linking verb
what about the remaining phrase?
***** NOT A TEACHER *****
The following information may interest you.
"It became necessary for Ruth to earn her own living."
It = formal subject.
became = linking verb.
necessary = adjective (refers to "it").
for Ruth to earn her own living. = prepositional phrase that is in apposition with "it."
In other words, the sentence is basically: "For Ruth to earn her own living + became + necessary."
Native speakers often feel more comfortable in changing this kind of sentence to an "it" construction.
Mona: It became necessary.
Raul: That's nice, but what do you mean by "it"?
Mona: For Ruth to earn her own living.
Raul: Oh, now, I understand.
Authority: House and Harman, Descriptive English Grammar (copyright 1931 and 1950).