Why is it not always necessary to include a subject pronoun before the verb in Spanish?

Unit 4 test

1.B
2.C
3.D
4.A
5.C
6.D
7.D
8.C
9.A
10.C
11.B
12.B
13.A
14.B
15.D
16.D
17.C
18.A
19.A
20.B
THESE ARE CORRECT. i JUST TOOK THE TEST AD GOT A 100

The reason is that the ending of the conjugated verb "tells" the subject.

o - yo
s - tú
vowel (a, e) = él, ella, Usted
-mos = nosotros/nosotras
-is = vosotros/vosotras

-n = ellos, ellas, ustedes
Above are the ending signals just for the Present Tense, as an example.

Sra

you are 100% correct thank you so much

Thank you so much anonomys! There still the same answers even in 2019 lol

thanks you~ <3

Omg poggers still 100% correct in november 2020

That was such a bad and unclear answer wtf

Lol I'm on the same test omg they are XD

2021

same in 2021 lol :)

What is an example

answers posted works for c0nnexus/c0nnections academy

So why is it not always necessary to include a sibject pronoun... i need an explanation pleasee

answers are still correct lol but anybody wanna explain the subject pronoun question plz

He explained it above.

lol 2021 squad

2022!

dang 2021 gang behind but guess im the same

ikr help..

Actually answer the question and give a example

:D

ty

Mmmmm yesyes 20211111

Bro we still here :(

i need an example in spanish

thanks mate

yooo they still right in 2023

mmmmmm, I don't understand

twitter.com/trainwreckstv