Spanish language Q&A Forum

There is a beautiful song, "Yolanda," by the Cuban singer/songwriter Pablo Milanés. The construction of one sentence using faltar confounds me: "Si me faltaras no voy a morirme." Why is faltar conjugated in second person singular? I'm having trouble fitting this usage in with any of the lesson examples. What am I missing? Thank you!

https://www.musica.com/letras.asp?letra=125255

A question in the quiz said “estoy viendo un documental en la tele”. Why would this not be mirando en lugar de viendo?

Is there any guidance at all as to which of the accepted placement options is preferred in a given situation? Is the choice totally down to the speaker? Which option is/are most commonly used?

Maybe this is covered in a lesson I haven't gotten to yet, but can you explain how "ni siquiera" is functioning in this sentence? 

Thanks! 

How do I enter an inverted question mark at the beginning of the question?

With the above question, "lo de" was said to be the answer.  However, there is a conjugated verb in the clause afterward, "fue".  Why isn;t the correct answer "lo de que"?  With a conjugated verb, the explanation says to use "lo de que". 

I could substitute “which person” here. What clue should I be looking for to tell me I don’t need the accent?