We have been waiting out here since noon.
The sentence is better if the "for" is used in place of "since".
how to use word since in the sentence
because, since, often,
Really? How long has it been since you were in kindergarten?
we think that since it is not clear what "them" is...that it is a sentence fragment.
since the party
since am not graduating this year
No, it is a subordinated phrase using since.
Since you're a dolt I'm not going to answer.
Since Maddy was sick, she could not got to school
You cant since ferocity is a noun, it wont be able to be in a sentence
Since that is not a word I would not attempt to use it in a sentence.