requerir Present Subjunctive Conjugation
requerir — to require
Requerir changes its stem from e to ie (requiera) and e to i in the nosotros/vosotros forms (requiramos).
requerir Present Subjunctive Forms
When to Use the Present Subjunctive
Use this tense when expressing a need or requirement triggered by doubt, desire, or impersonal phrases like 'es necesario que'. It's common in formal requests or when setting conditions.
Notes on requerir in the Present Subjunctive
This verb is a 'stem-changer'. Most forms use 'ie' (requiera), but the nosotros and vosotros forms change the 'e' to a simple 'i' (requiramos, requiráis).
Example Sentences
Es probable que el trabajo requiera más tiempo.
It's likely that the job will require more time.
él/ella/usted
Busco un puesto que no requiera viajar tanto.
I am looking for a position that doesn't require traveling so much.
él/ella/usted
Es importante que requiramos ayuda si la necesitamos.
It is important that we request help if we need it.
nosotros
Common Mistakes
Mistake: Using 'requieramos' for the nosotros form.
Correct: The correct form is requiramos.
Why: In the subjunctive, -ir stem-changing verbs use the 'i' change for nosotros, not the 'ie' diphthong.
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Related Tenses
Present
yo: requiero
Requerir follows an e to ie stem change in all forms except nosotros and vosotros.
Preterite
yo: requerí
Requerir is a 'slipper verb', changing e to i only in the third-person forms (requirió, requirieron).
Imperfect
yo: requería
The imperfect of requerir is regular: requería, requerías, requería...
Future
yo: requeriré
The future tense of requerir is regular: requeriré, requerirás, requerirá...
Conditional
yo: requeriría
The conditional of requerir is regular: requeriría, requerirías, requeriría...
Imperfect Subjunctive
yo: requiriera
The imperfect subjunctive of requerir uses the 'requir-' stem derived from the preterite third person.
Affirmative Imperative
yo: requiere
The imperative uses 'requiere' for tú and 'requiera(n)' for formal commands.
Negative Imperative
yo: no requieras
The negative imperative uses 'no' plus the present subjunctive forms.