Mantendríais

Mantendríais is the second‑person plural form of the conditional tense of the Spanish verb mantener, which means “to maintain,” “to keep,” or “to preserve.” In the conditional mood, mantendríais translates to “you (all) would maintain” or “you (all) would keep,” referring to a hypothetical or future‑in‑the‑past action addressed to a group.

The conditional of mantener is formed by adding the conditional endings –ía, –ías, –ía, –íamos, –íais, –ían to the infinitive stem. The full conjugation is: mantendría (I/he/she/it would maintain), mantendrías (you singular would maintain), mantendría (he/she/it would maintain), mantendríamos (we would maintain), mantendríais (you plural would maintain), mantendrían (they would maintain). The spelling change from mantener to mantendr‑ follows a regular pattern shared by verbs ending in –‑cer and –‑ger, where the “c” changes to “z” before “i” to preserve the /s/ sound.

Usage of mantendríais typically appears in conditional sentences, polite requests, or speculative statements. Example: «Si tuviera más recursos, mantendríais el proyecto durante más tiempo.» (If you had more resources, you would maintain the project longer.)

In written Spanish, the conditional is also used to express reported speech or future actions relative to a past moment, so mantendríais can convey what a group was expected to keep doing from a past viewpoint. The form is standard across Spanish‑speaking regions, though its frequency depends on the formality of the context.