Hercules C1 Grammar Quest

Which sentence is a correct third conditional?

• If Hercules knew his divine heritage, he might be stronger.
• If Hercules has known his divine heritage, he will have confronted Hades.
• If Hercules had known his divine heritage earlier, he would have confronted Hades sooner.
• If Hercules knows his divine heritage, he confronts Hades.

Explanation

A third conditional expresses a past hypothetical using if + past perfect (had known) and would have + past participle (would have confronted).