Spanish language Q&A Forum

under this section, the quiz showed a question as below.

Estoy intentando que ellos nos ________ una oportunidad.

i am not sure why does intentar trigger subjunctive.

is this because it contains uncertainty? so if im using other similar verbs such as probar or whatever scenario of trying to do something, i will need to use subjunctive?

there is a sentence in the notes where it says 

'Hablo con ella cuando llega a casa. = I will speak with her when she gets home.'

Since this is a non general statement of using cuando, but a future specified situation, shouldn't we use subjuntive? there is a note on this. are is this the same thing but different point of view?

Hablo con ella cuando llegue a casa. 

Thank you Silvia,

In "La vida de Eva (B1)" gapfill test we have:

"Eva siempre ha sido una persona que nunca toma decisiones por dinero o por conveniencia. Su familia la quiere mucho y, para ser sinceros, ha hecho muchos sacrificios ______ sus hijos."

The hint for the gap is:

"she has made many sacrifices for her children."

the accepted answer is "por"; "para" is marked wrong.

The explanation given for this is:

"Lesson: Using por (not para) to express the originating cause or reason"

Could you please help me to see

why "for" is interpreted here as indicating the "cause" and not the "recipient"?