You can insert a text box (Insert tab on the Ribbon), and from there you can easily format it with or without a border, shading, etc. That may be the simplest, though if you wish it to line up precisely with that sentence in the rest of the document, all on one line, you'll have to eyeball it well.

Or you can change one paragraph to a negative left indent, then use tab and hanging indent to re-align the actual text along the left line.

I did a quick cheesy version of each, and left the paragraph controls visible so you could see what it looked like.

Attached Images

text box or indent.jpg (133.9 KB, 23 views)