What are the past uses of opal?

Answer:
Opal is a noun, therefore it is an object and cannot have a past tense. Only verbs can have past tenses. Verbs are actions that you can do, such as walk
First answer by Smorgasborddd. Last edit by Smorgasborddd. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 2 [recommend question].