Question

what is the verb form for costly​

Answer 1

Explanation:

costed. simple past tense and past participle of cost.

Answer 2

Answer:

The problem with costly may be that it looks like an adverb as it ends in -ly. This is confusing as most adverbs end in -ly, but costly is an exception and is an adjective.

Explanation:

For more clarification watch the above picture.

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