Use "at" when the physical closeness between the object of the preposition and the word that the prepositional phrase modifies is the most important idea to be conveyed by the sentence concerned. "On" also usually implies physical closeness, but it has an additional and usually more important implication of literal or metaphorical support of the word modified by the prepositional phrase by the object of the preposition. There are also numerous idiomatic phrases that require a choice not easily inferred from these two principles: "on time", "on sale", and "on call" probably being the most common. Also note the two phrases, "at hand" and "on hand", where only "at hand" implies physical closeness, while "on hand" means readily available, but not necessarily nearby.
Use "at" when referring to a specific point or location, such as "at the store" or "at the bus stop." Use "on" when referring to a surface or position, such as "on the table" or "on the corner."
You can use the preposition "with" with the verb "disagree." For example, "I disagree with your opinion."
No, "but" is typically used as a conjunction to contrast two ideas or clauses. It is not commonly used as a preposition in English grammar.
The preposition "with" follows the use of the verb "concur." For example, "I concur with your opinion."
Yes, you can use the preposition "in" before "home" in sentences like "I am in my home" or "They are in their home."
Nouns, pronouns, gerunds, and noun phrases can commonly stand after a preposition in a sentence.
You use a preposition in a prepositional phrase, such as "I will be with you in a minute."
Nouns, pronouns, gerunds, and noun phrases can commonly stand after a preposition in a sentence.
use the preposition
No, "but" is typically used as a conjunction to contrast two ideas or clauses. It is not commonly used as a preposition in English grammar.
The preposition "against" is typically used after the word "prejudice." For example, one might say "prejudice against a certain group of people."
When can you use than as a preposition rather than a conjunction?
no
no
At is a preposition. And is a conjunction.
at by
after noun
Adverb: I had a hat on. Preposition: I didn't have any money on me.