medir Affirmative Imperative Conjugation
medir — to measure
Use 'mide' (tú) or 'midan' (ustedes) to tell someone to measure something.
medir Affirmative Imperative Forms
When to Use the Affirmative Imperative
Use commands for giving instructions, like in a recipe or a construction project.
Notes on medir in the Affirmative Imperative
The tú form is 'mide' (stem change). The usted/ustedes/nosotros forms use the 'i' from the subjunctive.
Example Sentences
¡Mide dos veces y corta una!
Measure twice and cut once!
tú
Mida usted el ancho de la puerta.
Measure the width of the door (formal).
Midamos la distancia con el GPS.
Let's measure the distance with the GPS.
nosotros
Common Mistakes
Mistake: Meda (usted).
Correct: Mida.
Why: The formal command comes from the subjunctive, which requires the 'i' stem change.
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Related Tenses
Present
yo: mido
Medir undergoes an e-to-i stem change in the present: mido, mides, mide, medimos, medís, miden.
Preterite
yo: medí
In the preterite, medir only changes e-to-i in the third-person forms (midió, midieron).
Imperfect
yo: medía
Medir is completely regular in the imperfect: medía, medías, medía, medíamos, medíais, medían.
Future
yo: mediré
The future of medir is regular: añadir the endings to the full infinitive (mediré, medirás, etc.).
Conditional
yo: mediría
The conditional of medir is regular: añadir -ía endings to the infinitive (mediría, medirías, etc.).
Present Subjunctive
yo: mida
The present subjunctive of medir uses the 'i' stem change in ALL forms: mida, midas, mida, midamos, midáis, midan.
Imperfect Subjunctive
yo: midiera
The imperfect subjunctive uses the 'midier-' stem for all forms (midiera, midieras, etc.).
Negative Imperative
yo: no midas
The negative imperative always uses the present subjunctive forms: no midas, no mida, no midamos, no midáis, no midan.