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Use parentheses. Duh!
And, try:

"get hold on you"
and
"get hold of you"
without "s"

There is difference: most people say "gets hold on you." And Google, though it is not always correct, nevertheless reflects that.

If this merciful nurse gets hold on you, she will send you to the grave really fast.[/quote]

gets hold of you[/quote]

Nope! It is still "gets hold on you"

Check on Google:

410,000 hits...

If this merciful nurse gets hold on you, she will send you to the grave really fast.