Verbals
They are formed from verbs,however,they do not function as verbs in a sentence.
They function as a nouns, adjectives,or adverbs
There are free types of verbals
Gerunds
Seeing is believing
Participles
Which acts as an adj
The drunken man,a ruined city
Infinitives
Which acts as a noun
To play is the only thing Pari wants to do once she finishes her exams