would keep, would maintain
| Singular | Plural | |
|---|---|---|
| First | mantenerme | — |
| Singular | Plural | |
|---|---|---|
| First | mantendría | — |
| Third | mantendría | — |
Creí que él mantendría su promesa.
I believed he would keep his promise.
Yo lo mantendría oculto, si fuera tú, en este lugar.
I would keep it hidden, if I were you, in this place.
— Marty Supremo (2025)
Tom podía confiar en que Mary mantendría su palabra.
Tom could trust that Mary would keep her word.
Sería amable pero mantendría las distancias si fuera usted.
I'd be polite but keep my distance if I were you.