Si versud que

Question

It seems to me that when conditional is used que takes on a similar function as si.

Could we replace que with si?

E.g.

No estaría bien que tuvieses tanto tiempo libre.

No estaría bien si tengas/tuvieras tanto tiempo libre.

Accepted Answer

Hola Emanuel
Very good observation!
You can, but only with the Imperfect subjunctive, not the Present subjunctive.
Original sentence:
No estaría bien que tuvieses tanto tiempo libre.
Also:
No estaría bien que/ si tuvieras tanto tiempo libre.
but not:
No estaría bien si tengas tanto tiempo libre. (incorrect)
After conditional "si" you cannot use the present subjunctive.
Saludos
Inma

Answer

Hola Stan
Your sentence "No estaría bien que tengas tanto tiempo libre." is correct. Bear in mind though that the more natural sequence would be conditional in the main clause + imperfect subjunctive in the subordinate after que:  "No estaría bien que tuvieras tanto tiempo libre."
But your combination is also correct using the present subjunctve "tengas"; in this case the effect is that of making it sound as something that may happen in a nearer future. 
Here is a lesson that will help with that structure and you will be able to see lots of examples.
I hope it helps.
Saludos cordiales
Inma

Answer

If you wanted to use the subjunctive, couldn’t you say: “ En general, Todas mis preguntas de texto son para nuestra clase. Como de siguiente…

Qué tal esta:

No estaría bien que tengas tanto tiempo libre.