No, it is not a preposition. It is an idiom: a compound adverb meaning a moment ago.
no good is now a preposition.
No, it is not a preposition. It is a compound adverb meaning immediately.
Yes. Just remember the saying "A preposition is anything a cat can do"
Yes, it can be a preposition, when used with an object (e.g. nearest the town). The preposition phrase, or just the word nearest, can be an adjective or an adverb.
The preposition is "over" and the entire phrase is "over the workstation." A preposition is usually just one word, but it can be more.
The preposition "with" is typically used with the verb "interfere." For example, "He always interferes with my work."
Yes - if it is widely accepted that prepositions indicate some form of relationship with regard to time and/or space then 'now' in sentences such as 'i want it now' or 'now is the time for action' functions precisely as one.
I have to go now; I have run out of time.
No, it is not. It is just another form of the preposition "toward."
No a preposition is anywhere a mouse can go. Just ask yourself "Can a mouse go lovely?"
No, two is a number: an adjective or a noun. But the homophone 'to' is a preposition. Example: Give the completed test to the teacher. "To" is your preposition. "Teacher" is the object of the preposition.
this is a trick Q like is not a prepositiion actually, like can indeed be a preposition, as in "His new car is like the old one." If you can substitute in another preposition and it still makes sense, then it's a preposition. "His new car is behind the old one." Anything being used to describe a relative comparison is usually a preposition, not just spacial comparisons.