Non-predicate verb to do subject
Todo called infinitive, can act as a variety of ingredients, it does not have a fixed form, belongs to the "universal substitute."
[To repair bicycles] is his job.
"It's his job to fix the bike."
The subject is put back:
It is his job [to repair bicycles].
It is a formal subject, and to does is the real subject.
When Todo a subject, put it at the top of the sentence or at the end of the sentence.
Example Analysis:
It must be terrible [to is grown up].
"It's really bad to grow up."
To being grown up is the real subject and it is the form subject.
It is easier for the detective [to watch her].
To do is the subject of common sentences
#句型1
It is adj. (+for sb.) + Todo sth.
"Something is xxxx for someone".
It is important for us [to study 中文版].
Pay attention to the middle for SB. can be omitted:
It is happy [to get together sometime].
#句型2
It takes (+SB.) + some time + todo sth.
It takes sb. A long time to do sth.
Note: Take can change tenses.
It took me ten minutes [to persuade her].
It'll take six weeks [to decorate].
Non-predicate verb to do which language (after transitive verb)
All of the students want [to pass exams].
Want to do something this is a fixed phrase collocation
Want verb, to do is its object.
He began [to play a tune].
Begin to do something and fix it. You can also use the begin doing. Non-predicate verb to do as predicative (after verb)
My dream are [to travel around the world].
is System verb