A sentence with underlined text is typically referred to as an underlined sentence. The underlining is used to draw attention to or emphasize specific words or phrases within the sentence.
No, not necessarily. You may do that in a certain context simply to draw attention to it. However, they are italicised sometimes.
A 'clause' is a group of words that includes a subject and a verb but is not a complete sentence (not a complete thought). 'Underlined clauses' is two or more of these within a group of sentences or a page of text with a line under them to indicate or call attention to them.
Words in a note may be underlined to indicate emphasis, to highlight key points, or to draw attention to specific information. Underlining can help the reader quickly identify important details or sections within the note.
The only explanation I can come up with is loneliness. People who are desperately lonely will go though almost anything for some sort of human contact or attention. They are willing to put up with heartbreak, abuse, dishonesty, neglect and etc. just to feel needed or that someone finds them useful, important or worthy of attention.
We say "draw your attention," and we tell someone to "pay attention," not "pay your attention."
Attention on deck! Pay attention! Your attention to this matter will be most appreciated.
Attention to this matter!
Pay attention is "fais attention" or "faites attention" in French.
For your attention is best
In past tense, the correct form would be "paid attention."
The past tense of "to pay attention to" is "paid attention to."