had had in inglese:

I've always wondered what it'd be like to have siblings.

What's going on in the cave? I'm curious. "I have no idea."

Democracy is the worst form of government, except all the others that have been tried.

If two men always have the same opinion, one of them is unnecessary.

I have hiccups.

I entered the museum through the wrong gate. I should have been more careful.

I have a hard time seeing the logic of this latest decision of his. He just isn't as sharp as he used to be.

Wrinkles should merely indicate where smiles have been.

Those who choose not to read have no advantage over those who can't read.

He has collected twice as many stamps as I have.

More and more women have their own careers and are economically independent of their husbands.

Men and women between the ages of 25 and 54 have the most stressful lives.

We have a new puppy. He is about 12 weeks old.

By the end of the century, the earth will have experienced a dramatic increase in temperature.

We currently have 200 well organized sales offices all over Japan.