Bear with me, noob in Spanish here.
I was doing my basics in Spanish and I noticed something.
The fill in the blank they gave me was "Yo ___ una niña." with the two options being "es" and "soy". What is the difference between the two? They are basically the same...
"Yo soy una niña." ----> I'M a girl. "Yo es una niña." ----> I AM a girl.
Shouldn't both be correct? Why is more correct than the other?
No one in this thread has mentioned usted and ustedes?
Usted es-- you (formal) are
Ustedes son--you (plural) are
Ustedes is the only second person plural pronoun used in Latin America (and the Canaries)
Here's a conjugation table for the present form of the verb ser (to be).
I am: yo soy
you are: tu eres
he/she is: el/ella es
we are: nosotros somos
you plural are: vosotros sois
they are: ellos/ellas son
This is probably the most simply I can put it.
Remember, there's also two more ways to say "to be"- with the verb estar and the verb haber. Generally one would use estar with temporary states of things, and you would use haber to explain that something in in existence (so hay = there is).
I hope this helps! Good luck with your Spanish.
No, "es" is the third person singular (Él/Ella es = He/she is).
"Soy" is the first person singular (Yo soy = I am).
The conjugation of the verbs (i.e., the form of the verb corresponding to the person it refers to) is crucial in all languages, but in Spanish in particular, because in Spanish, often the personal pronoun (yo, tú, ella etc) is left out:
Soy una chica. (I am a girl).
Es una chica. (She is a girl.)
Therefore, you should take great care to use these forms correctly right from the start. Happy learning! :-)
 Sorry, I am misreading the problem here.
You conjugate differently depending on the subject
|él, ella, usted||es|
|ellos, ellas, ustedes||son|
Vosotros is only used in Spain, not so much in Latin America. It is not taught on Duolingo.
Below is another problem you will run into, but not the problem here.
No, only soy would be correct. To be is split into two words in Spanish. That is going to take some time to get used to.
The rule of thumb often cited is "ser" is for permanent things and "estar" for temporary stuff, but while it works surprisingly often, it is not entirely correct.
Here is some additional material to dive into:
Yo soy una niña= I am a girl Yo es una niña = I is a girl
One of those makes a lot more sense than the other, am I right?
Hope this helps you Jasmine.