Find vs. Found

Remember that the verb to found means “to establish or set up on a firm foundation.” This pair of words shouldn’t cause much trouble; just don’t be confused by the fact that the second one (found) looks like the past tense and past participle forms of the first one:

found the lost city of Atlantis (past tense of to find)

a plan to found a city called Atlantis (to establish such a city)

founded a city called Atlantis (established; past tense of to found)

And remember that the past tense and past participle forms of to found are both founded:

founded an organization (established)

well-founded beliefs (beliefs with a logical foundation)