Is "for" necessary in this sentence:
Now all you need is for Mark to join the team.
Thanks.
***** NOT A TEACHER *****
Good morning.
(1) I have been thinking about your sentence.
(2) I now think it might (might!!!) be better to use "for."
(3) Let's remember that "all" = the one thing.
(4) Therefore, I believe that your sentence really =
The one thing (that) you need + IS (linking verb)+ for Mark to join the team. (For Mark to join the team = infinitive phrase acting as subjective complement. That is, it is referring to "All" (the one thing). )
(5) Notice how "for" is probably (probably!!!) necessary if you decide to use the infinitive phrase as the subject:
FOR Mark to join the team + is + all (the one thing) (that) you need.
I think (think!!!) that it would sound a bit strange or incomplete to omit "for," as in: Mark to join the team is all you need.
Thank you.