compostarais

form-of imperfect plural second-person subjunctive

compostarの二人称複数仮定法過去形

English Meaning

second-person plural imperfect subjunctive of compostar

Sería ideal si compostarais los restos del huerto para enriquecer el suelo.

庭の残りを堆肥にして土壌を豊かにできるなら理想的です。

It would be ideal if you composted the garden waste to enrich the soil.