I would just google all of these
Answer:
If a noun ends in a vowel, simply add -s.
If a noun ends in a consonant, simply add -es.
If a noun ends in a -z, change the z to c before adding -es.
If a noun ends in ión, drop the written accent before adding -es.
If the plural refers to a mixed group, use the masculine.
If a noun ends in -z, add -es and change the z to c.
Explanation:
<span>Yendo is the answer.
Hope this helps!
A gerund is </span><span>a form that is derived from a verb but that functions as a noun, in English ending.</span>
The third one is correct: ¿Es usted de Ecuador?