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The man’s having put The man being put The man having been Having been
Ten years went by Ten years has passed It is ten years ago There are ten years
used use using being used
to help; being to helping; to be to help; to be helping; being
in ten years ten years ago for ten years ten years later
Ten years ago Since ten years ago In ten years Before ten years
to help; to be to help; being to helping; to be helping; being
A.immediately for the first time while moment
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teaching being taught to teach to be taught
to help; being to helping; to be to help; to be helping; being
use using being used used
since ten years ten years ago for ten years ten years before
when; set up that; founded when; founded that ; came into being
to help; being to helping; to be help; to be helping; being
use using being used used
use using being used used
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