requerir Affirmative Imperative Conjugation
requerir — to require
The imperative uses 'requiere' for tú and 'requiera(n)' for formal commands.
requerir Affirmative Imperative Forms
When to Use the Affirmative Imperative
Use this for direct orders or instructions, though it sounds quite formal. It's often used in legal or official contexts.
Notes on requerir in the Affirmative Imperative
The tú form uses the e to ie change (requiere). The usted and ustedes forms use the subjunctive stem with the 'i' change for nosotros (requiramos).
Example Sentences
Requiere siempre el recibo de compra.
Always require (ask for) the purchase receipt.
tú
Requiera los documentos necesarios al cliente.
Request the necessary documents from the client.
Requiramos el pago por adelantado.
Let's require payment in advance.
nosotros
Common Mistakes
Mistake: Using 'requere' for the tú command.
Correct: The correct form is requiere.
Why: Affirmative tú commands for stem-changing verbs usually follow the present indicative 'él' form.
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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...
Present Subjunctive
yo: requiera
Requerir changes its stem from e to ie (requiera) and e to i in the nosotros/vosotros forms (requiramos).
Imperfect Subjunctive
yo: requiriera
The imperfect subjunctive of requerir uses the 'requir-' stem derived from the preterite third person.
Negative Imperative
yo: no requieras
The negative imperative uses 'no' plus the present subjunctive forms.