duplicar Preterite Conjugation
duplicar — to double
The preterite of duplicar has a spelling change in the 'yo' form: dupliqué.
duplicar Preterite Forms
When to Use the Preterite
Use the preterite for a completed action of doubling something, like when a price doubled overnight or you duplicated a file yesterday.
Notes on duplicar in the Preterite
It has a 'c' to 'qu' spelling change in the first person (yo dupliqué) to keep the hard 'k' sound. All other forms are regular.
Example Sentences
Ayer dupliqué el archivo por error.
Yesterday I duplicated the file by mistake.
yo
El precio de la gasolina se duplicó el mes pasado.
The price of gas doubled last month.
él/ella/usted
Ellos duplicaron sus ventas en un solo verano.
They doubled their sales in a single summer.
ellos/ellas/ustedes
Common Mistakes
Mistake: Writing 'duplicé' for the yo form.
Correct: The correct spelling is 'dupliqué'.
Why: In Spanish, 'ce' sounds like 'se'. To keep the hard 'k' sound of 'duplicar', you must use 'qu' before 'e'.
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Related Tenses
Present
yo: duplico
The present tense of duplicar is regular: duplico, duplicas, duplica, duplicamos, duplicáis, duplican.
Imperfect
yo: duplicaba
The imperfect of duplicar is regular: duplicaba, duplicabas, duplicaba, duplicábamos, duplicabais, duplicaban.
Future
yo: duplicaré
The future of duplicar is regular: duplicaré, duplicarás, duplicará, duplicaremos, duplicaréis, duplicarán.
Conditional
yo: duplicaría
The conditional of duplicar is regular: duplicaría, duplicarías, duplicaría, duplicaríamos, duplicaríais, duplicarían.
Present Subjunctive
yo: duplique
The present subjunctive of duplicar uses the 'qu' spelling: duplique, dupliques, duplique, dupliquemos, dupliquéis, dupliquen.
Imperfect Subjunctive
yo: duplicara
The imperfect subjunctive of duplicar is regular: duplicara, duplicaras, duplicara, duplicáramos, duplicarais, duplicaran.
Affirmative Imperative
yo: duplica
The imperative of duplicar gives commands: duplica (tú), duplique (usted), dupliquemos (nosotros).
Negative Imperative
yo: no dupliques
The negative imperative of duplicar uses 'no' + present subjunctive: no dupliques, no duplique, no dupliquemos.