descompusieras

Verb

form-of imperfect second-person singular subjunctive

descomponerの二人称単数接続法過去未完了形

English Meaning

second-person singular imperfect subjunctive of descomponer

Si descompusieras el motor, el coche no funcionaría correctamente.

もしエンジンを故障させたら、車は正常に動作しなくなるでしょう。

If you were to break down the engine, the car would not function correctly.