Irish has no infinitive and uses instead the verbal noun.
The verbal noun can be formed using different strategies (mostly suffixes).
The verbal noun is used as the infinitive would be used in English.
However other authors may use the term "verbal noun" to cover both cases.
The form of these participles and verbal nouns is largely predictable.
A supine is a verbal noun in some languages.
Other languages may have other specific types of verbal noun.
Also, a verbal noun or adverb can take a direct object.
The passive participles and verbal noun are not in use.
This has led to the verbal noun or gerund deliciousing.