disminuir Present Conjugation
disminuir — to decrease
Disminuir is irregular in the present tense, adding a 'y' before endings: disminuyo, disminuyes, disminuye, disminuyen.
disminuir Present Forms
When to Use the Present
Use the present tense to discuss current trends, scientific facts, or habits regarding things that are currently getting smaller or lowering in intensity.
Notes on disminuir in the Present
This is a 'y-insert' verb. For all forms except nosotros and vosotros, you must insert a 'y' after the 'u' to maintain the correct sound.
Example Sentences
La contaminación disminuye cada año en esta ciudad.
Pollution decreases every year in this city.
él/ella/usted
Yo disminuyo la velocidad cuando veo un radar.
I decrease my speed when I see a speed trap.
yo
Los precios no disminuyen a pesar de la crisis.
Prices do not decrease despite the crisis.
ellos/ellas/ustedes
Common Mistakes
Mistake: disminuo
Correct: disminuyo
Why: Verbs ending in -uir (except -guir) require a 'y' before the vowel endings in the present tense.
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Related Tenses
Preterite
yo: disminuí
In the preterite, disminuir changes 'i' to 'y' in the third-person forms: disminuyó and disminuyeron.
Imperfect
yo: disminuía
Disminuir is regular in the imperfect: disminuía, disminuías, disminuía, disminuíamos, disminuíais, disminuían.
Future
yo: disminuiré
Disminuir is regular in the future: disminuiré, disminuirás, disminuirá, disminuiremos, disminuiréis, disminuirán.
Conditional
yo: disminuiría
The conditional of disminuir is regular: disminuiría, disminuirías, disminuiría, disminuiríamos, disminuiríais, disminuirían.
Present Subjunctive
yo: disminuya
The present subjunctive follows the 'yo' form change, inserting a 'y': disminuya, disminuyas, disminuya, etc.
Imperfect Subjunctive
yo: disminuyera
The imperfect subjunctive uses the 'y' from the preterite: disminuyera, disminuyeras, disminuyera...
Affirmative Imperative
yo: disminuye
Give commands to reduce or decrease: disminuye (tú), disminuya (usted), disminuid (vosotros).
Negative Imperative
yo: no disminuyas
Negative commands use the present subjunctive: no disminuyas, no disminuya, no disminuyamos.