Possible Results:
estaba endureciendo
-I was hardening
Imperfect progressive yo conjugation of endurecer.
Imperfect progressive él/ella/usted conjugation of endurecer.

endurecer

Popularity
2,500+ learners.
TRANSITIVE VERB
(to make harder or tougher)-to harden
Synonyms for endurecer
Antonyms for endurecer
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