suponer Future Conjugation
suponer — to suppose
Suponer has an irregular stem in the future: supondré, supondrás, supondrá.
suponer Future Forms
When to Use the Future
Use the future to talk about what something will imply or to make a guess about a current situation (probability).
Notes on suponer in the Future
The 'e' in the infinitive ending is replaced by a 'd', creating the stem 'supondr-'.
Example Sentences
Este cambio supondrá mucho trabajo.
This change will involve a lot of work.
él/ella/usted
Supondré que estás de acuerdo si no dices nada.
I will assume you agree if you don't say anything.
yo
Eso les supondrá un gran ahorro.
That will mean a big saving for them.
él/ella/usted
Common Mistakes
Mistake: Using 'suponeré' instead of 'supondré'.
Correct: The correct stem is supondr-.
Why: Suponer, like poner, is one of the few verbs that adds a 'd' in the future stem.
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Related Tenses
Present
yo: supongo
Suponer follows the pattern of 'poner' in the present, with a 'go' ending in the yo form: supongo.
Preterite
yo: supuse
Suponer uses the irregular stem 'supus-' in the preterite: supuse, supusiste, supuso.
Imperfect
yo: suponía
Suponer is completely regular in the imperfect: suponía, suponías, suponía.
Conditional
yo: supondría
The conditional uses the same irregular stem as the future: supondría, supondrías.
Present Subjunctive
yo: suponga
The present subjunctive is built from the 'yo' form 'supongo': suponga, supongas, suponga.
Imperfect Subjunctive
yo: supusiera
Based on the preterite 'supusieron', the stem is 'supusiera-'.
Affirmative Imperative
yo: supón
The command for 'tú' is 'supón'; other forms use the 'supong-' stem.
Negative Imperative
yo: no supongas
The negative command uses 'no' plus the present subjunctive: no supongas, no suponga.