In the German language, there are several exceptions in the usage of the modal verb "können." For example, in many dialects and colloquial speech, the verb "können" can be shortened to "kann" even in the form of the first-person plural "wir können." This phenomenon, although not normative, is quite common in spoken practice. It should also be noted that in some contexts, the verb "können" can be used with other verbs in the construction "können + infinitive" to express possibility or permission. For example, "Ich kann schwimmen gehen" (I can go swimming) or "Du kannst das Buch lesen" (You can read the book). This construction allows conveying the meaning of the sentence more accurately and indicating additional actions or possibilities. Such exceptions in the usage of the verb "können" should be taken into account when studying the German language, as they can occur both in spoken and written language.