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They had built this plant by the end of 2010.

After I had mixed my colours I began to paint.

Yesterday I bought a new watch as I had lost my old one.

After they had travelled in the Caucasus they decided to make a sea voyage.

He opened his eyes and tried to remember what had happened to him.

I had not done half the work when he came in.

I told him I had never done such a thing until then.

I had never seen him in my life, so of course I couldn't recognize him.

They hadn't finished talking when I phoned him.

He couldn't go to the seaside because he had not passed all his examinations.