roer Present Subjunctive Conjugation
roer — to gnaw
The present subjunctive of roer follows the 'roig-' stem: roiga, roigas, roiga, roigamos, roigáis, roigan.
roer Present Subjunctive Forms
When to Use the Present Subjunctive
Use this after expressions of doubt, desire, or commands, such as 'No quiero que el perro roiga mis zapatos' (I don't want the dog to gnaw my shoes).
Notes on roer in the Present Subjunctive
The subjunctive is built from the irregular 'yo' form of the present indicative (roigo), so the 'g' appears in all forms.
Example Sentences
Espero que el ratón no roiga los cables.
I hope the mouse doesn't gnaw the cables.
él/ella/usted
Dudo que tú roigas esa carne tan dura.
I doubt that you will gnaw that very tough meat.
tú
Es necesario que nosotros roigamos el problema poco a poco.
It is necessary that we gnaw away (tackle) the problem bit by bit.
nosotros
Common Mistakes
Mistake: Using 'roa' instead of 'roiga'.
Correct: The standard modern form is 'roiga'.
Why: While 'roa' existed historically, 'roiga' is the accepted form following the 'roigo' root.
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Related Tenses
Present
yo: roigo
The present tense of roer is irregular in the 'yo' form (roigo), but otherwise follows regular -er patterns.
Preterite
yo: roí
The preterite of roer features spelling changes where 'i' becomes 'y' in the third person (royó, royeron).
Imperfect
yo: roía
The imperfect of roer is completely regular: roía, roías, roía, roíamos, roíais, roían.
Future
yo: roeré
The future tense of roer is regular: roeré, roerás, roerá, roeremos, roeréis, roerán.
Conditional
yo: roería
The conditional of roer is regular: roería, roerías, roería, roeríamos, roeríais, roerían.
Imperfect Subjunctive
yo: royera
The imperfect subjunctive of roer uses the 'roy-' stem: royera, royeras, royera, royéramos, royerais, royeran.
Affirmative Imperative
yo: roe
The imperative of roer uses 'roe' (tú) and the irregular 'roiga' (usted/ustedes).
Negative Imperative
yo: no roigas
The negative imperative of roer always uses the 'roig-' stem: no roigas, no roiga, no roigamos, no roigáis, no roigan.