I'm trying to prepare a lesson with the following type of questions
To play soccer is fun
It's fun to play soccer
Notice each sentence contains "to play soccer". Other similarly structured sentences may have "to read books", "to speak English", "to listen to music" .. and so on
I'm trying to find a page that explains the basics of this type of phrase "to [verb] _______" and it's role in the sentences. Also, further different usages of this phrase used in the following sentences
I want to play soccer
I have a lot of time to play soccer
I'll do my best to play soccer
These three sentences make use of the same "to [verb] _____" but apparently are three difference usages. I want to find a page, or if some kind soul could offer an explanation, that I can learn more. For the three sentences above I want to know the difference and create many sentences, then allow my students to arrange each in groups - that kind of thing. I have tried to search myself but don't really know the name given to this grammar rule if one exists.
Anyway if someone could point me in the right direction or give me some tips it would be very much appreciated.