Downton: if

if

reported speech

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If I ____ him, I would have killed him.
Если бы я увидел его, я бы убил его.

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And if I ____ him, I would hang.
И если бы я убил его, меня бы повесили.

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BATES: Who killed him, you mean? I wanted to. I was going to. I went into York very early, and I bought a return ticket to London. I planned to get there and back in the same day. I went onto the platform, but I never got onto the train.
ANNA: Why not?
BATES: Because I knew… if I saw him, I would have killed him. And if I killed him, I would hang. I couldn’t do that to you.

Source: Downton Abbey: Season 5 Episode 6
Timestamp: 29:00