What is the past tense of the word "cost"?

My spell check doesn't like the word "costed." I normally have excellent grammar, so this is driving me nuts.

What is correct?
It would have cost(ed) X amount of money?

1 Answer
Jul 31, 2018

The correct sentence would be:
It would have cost X amount of money.


For example, one sentence with the past tense cost could be:
This ring cost me a thousand dollars.

Sometimes, though, the word "costed" is okay too. One sentence with the past tense costed could be:
I have costed out these expenses to the architect.

I know it's confusing, but soon, you'll get the hang of it! :)