Learn Hardcore Latin: Post contionem cives inter se disputant utrum decretum bonum sit. - After the assembly the citizens debate among themselves whether the decree is good.

Breakdown of Post contionem cives inter se disputant utrum decretum bonum sit.

Why is contionem in the accusative case?

Because post is a preposition that takes the accusative in Latin. So post contionem means after the meeting / after the speech.

Here:

So this is not the direct object of a verb; it is simply the object of the preposition post.

What is cives doing grammatically in the sentence?

Cives is the subject of disputant.

So cives disputant means the citizens discuss.

What does inter se mean exactly?

Inter se means among themselves or with one another.

This expression is very common in Latin:

So cives inter se disputant means the citizens are discussing with each other, not just speaking in general.