So my problem is that I find it slightly confusing that there are some verbs that change their meaning with different prefixes, and others that have the same meaning but are used in different contexts, like:
entscheiden unterscheiden
sprechen besprechen entsprechen
fahren verfahren
usw
I know of trennbare und untrennbare verbs but I need to know if there is a dictionary or something to learn those words, or if there is a rule for that. Obviously there won't be a rule for verbs changing their meaning with different prefixes, but perhaps at least for those to use in different contexts?