Finite and Non-finite Verbs:

Finite and non-finite verbs are two types of verbs based on their usage and form in a sentence. Understanding the difference between these two types of verbs is essential for constructing grammatically correct sentences in English.

Finite Verbs:
A finite verb is a verb that shows tense, person, and number. It is directly related to the subject of a sentence and changes its form according to the tense and number of the subject. Finite verbs are used to express a complete action or state.

Examples of finite verbs in different tenses:
- She plays the guitar. (Present tense)
- They played basketball yesterday. (Past tense)
- He will eat dinner later. (Future tense)

Non-finite Verbs:
A non-finite verb is a verb that does not show tense, person, or number. It does not change its form based on the subject of a sentence. Non-finite verbs are used to express an incomplete action or state.

There are three types of non-finite verbs:
1. Infinitives: Infinitives are the base form of a verb preceded by the word "to." They can function as nouns, adjectives, or adverbs in a sentence.
- Example: She likes to sing in the choir. (Infinitive functioning as a noun)

2. Gerunds: Gerunds are verbs that end in "-ing" and function as nouns in a sentence.
- Example: Running is good for your health. (Gerund functioning as the subject)

3. Participles: Participles are verbs that function as adjectives in a sentence. They can be present participles (ending in "-ing") or past participles (ending in "-ed," "-en," or irregular forms).
- Example: The broken glass needs to be cleaned. (Present participle)
- Example: The damaged car was taken to the garage. (Past participle)

Conjunctions:
Conjunctions are words used to connect words, phrases, or clauses in a sentence. They help to establish relationships between different parts of a sentence and make the overall meaning clear.

Some common conjunctions in English include:
- Coordinating Conjunctions: And, but, or, so, for, nor, yet.
- Subordinating Conjunctions: Although, because, if, since, until, while.
- Correlative Conjunctions: Either...or, neither...nor, both...and, whether...or.

Conjunctions play a crucial role in sentence structure and help create complex sentences by joining different clauses or phrases together.

In conclusion, finite verbs express a complete action or state and show tense, person, and number, while non-finite verbs express an incomplete action or state and do not show tense, person, or number. Conjunctions are used to connect different parts of a sentence and establish relationships between them.