Usages of sí
Si mi amiga está muy nerviosa, le recuerdo que hay que respirar lento y pensar en lo que sí puede controlar.
If my friend is very nervous, I remind her that you have to breathe slowly and think about what she can control.
Yo sí comprendo la lección hoy.
I really do understand the lesson today.
Mi amiga sí aguanta las películas de terror; yo no.
My friend can put up with horror movies; I can't.
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