Definnition:
'Against' can be used as a preposition to indicate a state of opposition or confrontation. It is often used with 'be' in order to indicate a strong sense of opposition.
Rules:
'Against' should be followed by a noun or pronoun. 'Against' should be followed by a verb or action. The subject in the sentence should always precede 'against'.
Examples:
1. She is against the new government policies.
2. He is strongly against spending more money.
3. We are against anyone who discriminates against other people.
Tips:
It is important to note that 'against' should always be followed by a noun or pronoun, and should never be used as a standalone preposition. Additionally, it is more correct to use 'against' instead of 'versus' when expressing a strong point of opposition.