The correct is to say "required”.
To request means “to request by means of application, petition”. Some people confuse the meaning of this verb with the verb “to want” and think that it is a kind of derivative that makes sense of “to want again”.
let's see: in the present tense it is “require” and in the present tense of the subjunctive it is “require”.
a) I claim my rights because that way I guarantee the future of my children.
b) My lawyer wants me to apply for my child support rights.
In the other conjugations, which belong to the past or future, the verb “require” follows the same pattern as “sell”. Watch:
Indicative:
In past tense perfect: he sold, he required.
In the past tense: I sold, I required.
In the more-than-perfect past tense: I will sell, I will require
Future of the present: we will sell, we will require
Future of past tense: she would sell, she would require
Subjunctive:
Imperfect past tense: if she sold, if she required
Future: when I sell, when I apply
In doubt, just conjugate the verb “sell” in the past or future and be aware of the present indicative and subjunctive, mentioned above.
The gerund is required and the participle is required.
Important: the conjugation “requis” for past tense does not exist!
By Sabrina Vilarinho
Graduated in Letters
Brazil School Team
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Verbal Doubts - Grammar - Brazil School
Source: Brazil School - https://brasilescola.uol.com.br/gramatica/requeriu-ou-requereu.htm