How do we use the phrase "To think..."? I am wondering how it should be used and what it means exactly? Is it used to say someone is astounded or surprised? I remember seeing it used before, but I am not sure how to use the phrase correctly?
To think they would go this far to prevent us from winning.
Is the phrase incomplete? Do you need to put ellipsis (...) for the phrase to make sense, how can I fix the phrase to make it seem the person saying it is bewildered or surprised?