medir Present Subjunctive Conjugation
medir — to measure
The present subjunctive of medir uses the 'i' stem change in ALL forms: mida, midas, mida, midamos, midáis, midan.
medir Present Subjunctive Forms
When to Use the Present Subjunctive
Use this when you want someone else to measure something, or when expressing doubt about a measurement.
Notes on medir in the Present Subjunctive
Because medir is an -ir stem-changer, the 'i' change carries through every single person in the subjunctive, including nosotros.
Example Sentences
Espero que midas bien la madera.
I hope you measure the wood well.
tú
Dudo que ellos midan lo mismo.
I doubt that they measure the same.
ellos/ellas/ustedes
Es importante que midamos el riesgo.
It is important that we measure the risk.
nosotros
Common Mistakes
Mistake: Que nosotros medamos.
Correct: Que nosotros midamos.
Why: In the present subjunctive, -ir stem-changers like medir apply the change to the nosotros form too.
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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.).
Imperfect Subjunctive
yo: midiera
The imperfect subjunctive uses the 'midier-' stem for all forms (midiera, midieras, etc.).
Affirmative Imperative
yo: mide
Use 'mide' (tú) or 'midan' (ustedes) to tell someone to measure something.
Negative Imperative
yo: no midas
The negative imperative always uses the present subjunctive forms: no midas, no mida, no midamos, no midáis, no midan.