Hello
(A) It's typical that he should disappear just when you need him.
(B) It's typical that he disappear just when you need him.
(C) It's typical that he disappearsjust when you need him.
Which sentence is the most natural?, or all the sentences are natural?
I think it should depend on which language(American or British) you speak.
A is normal and natural BrE; I feel that both B and C are acceptable.
To me, a) is the most natural, then c), then b). (BrE speaker)
Most of us Yanks would use "c" in casual everyday use.
John