I was joking with a French friend. I wrote:
S'ils m’éclateront, je t’éclaterai.
I thought putting both in future tense was correct.
She wrote back (after a laugh) that I should use subjunctive…
S'ils m'éclatent, je t'éclaterai.
I searched my grammar book and online some resources but I couldn't find a rule about using the subjunctive with “si”. Can you point me in the right direction?