They also do not have a clear distinction between verbs and adjectives, as can be seen in Japanese:

The main difference between verbs and prepositions is that verbs have a subject.

The distinction drawn here between ergative and object-deletion verbs is based on the role of the subject.

The borderline, they claimed, runs between verbs and nouns!

For example, it did not contain the unreal distinction between nouns and verbs found in most other languages.

In many cases, this is the only difference between standard Norwegian and Vikværsk irregular verbs.

There is a clear cut difference in Kokborok between nouns and verbs.

Marking spacial relation between verbs and their objects is obligatory.

However, there are some types of nunation whose purpose is not to differentiate between nouns and verbs.

The boundaries between nouns and verbs in Ubykh is somewhat blurred.