Spanish language Q&A Forum

Is se tardaron correct as well as the agent in the sentence below is unknown and you had written an identical example sentence using se tardaron

I was a little surprised at the sentence "Los estudiantes juntamos...". I would have expected it to be "Los estudiantes juntan..." as los estudiantes is 3rd person plural. Is it "juntamos" because the speaker is counting himself amongst them? i.e. "We, the students, are collecting..."

1. What's the difference between tu and vosotros.

2. I would like to start Spanish from LKG level. I learn from here and there. I would like to have a systematic study. How could kwizuq help me?

I didn't realize that the entire proper noun is not capitalized or even just the nouns in the name. Apparently only the first word is?

Ps, I didn't see a response yet to the pair of questions regarding the use of the el/lo pronoun quandary.

In this example the translation is "We couldn't see anything from our seats."  Shouldn't it be "We didn't see anything from our seats."  Why "couldn't?" 

This is from an example in a lesson.  the response given is:  Desde pequeño.  That seems incomplete to me.  Would it be correct to say: Desde era pequeño.  

!No me encuentro/no encuentro   las llaves del coche! is the test item.

The correct answer is reported to be no encuentro.  
Encontrarse is said to be used when "surprised to discover something".  I interpreted the exclamation marks as indicating surprise at discovering I was unable to find the keys.  I was probably overthinking it, ?verdad?