suponer Present Conjugation
suponer — to suppose
Suponer follows the pattern of 'poner' in the present, with a 'go' ending in the yo form: supongo.
suponer Present Forms
When to Use the Present
Use the present tense to express current assumptions, guesses, or things you take for granted in the moment.
Notes on suponer in the Present
It is irregular only in the first person singular (yo), where the ending becomes -go. All other forms follow regular -er endings.
Example Sentences
Supongo que tienes razón.
I suppose you are right.
yo
Eso supone un gran esfuerzo para nosotros.
That implies a great effort for us.
él/ella/usted
Ellos suponen que la fiesta es a las ocho.
They assume the party is at eight.
ellos/ellas/ustedes
Common Mistakes
Mistake: Using 'supono' for the yo form.
Correct: The correct form is supongo.
Why: Like the verb 'poner', suponer adds a 'g' in the first person singular.
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Related Tenses
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.
Future
yo: supondré
Suponer has an irregular stem in the future: supondré, supondrás, supondrá.
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.