I'd like to see a prediction for the ... in this sentence: "If I'd known what it can cost to ..., I'd have tried harder to ... it." Context is everything. The

I'd like to see a prediction for the ... in this sentence: "If I'd known what it can cost to ..., I'd have tried harder to ... it." Context is everything. There are a lot of ways to finish the sentence. If it appears in an unfamiliar context, the right answer is NP hard.