Present subjunctive after si

Question

Si sigues empujando ________. If you keep pushing you'll make me fall over.me harás caer
Hi, re “si sigues”, is there a lesson on use of present subjunctive after si? I searched but didn’t find one. Saludos, Shirley.

David McNaughton · Accepted Answer

Hi there Shirley ...
In Spanish, you [almost!] never use a present subjunctive after "Si ..." -
so it is probably best to regard that as an important rule.
[My grammar book does, however, mention that you might occasionally see it after "saber": > 
> "No sé si sea cierto" = "I do not know whether it be true" - translating it using a subjunctive in English!]
As I'm sure you know, 'Si + imperfect subjunctive' is the standard way of expressing unfulfilled conditions - [it is then then followed by an expression in the conditional tense]:
e.g., "If you were to keep pushing ... " would then be translated: "Si siguieses empujando ..."
Regarding the "Si sigues empujando ...", which you quote:
The use of the Present Indicative here, indicates that the pushing is actually taking place.
Cheers, David Mc

Inma Sánchez · Answer

Hola Shirley
There is no lesson on si + present subjunctive as this combination doesn't exist in Spanish, as David said before (only on that example with the verb saber) 
I imagine you have already seen this lesson on si + present indicative. I've added a note at the end of that lesson to alert about not using si + present subjunctive. I hope it helps.
Saludos
Inma