Most of the time, a non-finite verb is not the primary verb in the sentence. It doesn't indicate the verb's number or tense. Multifunctional verbs are non-finite verbs. By adding a "to" to the verb's base form, it can be used as an infinitive in the gerund form of the verb. There are three types: 

1. Gerunds (acting like nouns - "Reading is fun")
2. Participles (acting like adjectives - "The broken window" or adverbs - "Smiling, she greeted them")
3. Infinitives (showing possibility or purpose - "to learn", "to win"). They add richness and variety to your writing.

What are Non-Finite Verbs?

A non-finite verb is a verb form that lacks tense (past, present,future) and can't be the main verb in a sentence. It acts more like an adjective, adverb, or noun.

How to Use Non-finite Verbs in Sentences?

Non-finite verbs enhance and clarify sentences in a variety of ways, but they are insufficient as the primary verb in a phrase on their own. Use them in sentences like this:

Gerunds (acting as nouns):

• "Running is a great way to exercise." (subject)
• I enjoy reading in the evenings. (object)

Participles (acting as adjectives):

• The sleeping dog didn't hear the doorbell. (describes the dog)
• Smiling, she greeted her friends. (describes how she greeted)

Participles (acting as adverbs):

• Exhausted, they reached the campsite. (describes how they reached)
• She whispered softly. (describes how she whispered)

Infinitives (showing purpose):

• I went to the store to buy milk. (shows the purpose of going)
• Her goal is to win the competition. (shows the purpose of the goal)

Infinitives (showing possibility):

• They might go to the beach tomorrow. (possibility of action)
• It's hard to believe her story. (possibility of belief)

Difference between Finite Verbs and Non-finite Verbs?

Finite Verbs	Non-finite verbs
Finite verbs can express a person, number, or tense.	No tense exists for non-finite verbs.
Finite verbs take the verb in question in both its simple present and simple past tenses.	Verbs that are not finite can be used as infinitives, present participles, or past participles.
Finite verbs are always in agreement with the sentence's subject who is acting in that way.	Non-finite verbs in sentences don't agree with the subject.
A finite verb gives the impression that it is a component of an independent clause and can support the clause's independence by providing a clear understanding of what is being said.	Non-finite verbs frequently form phrases and are meaningless on their own.