Grammar

The Gerund-Non-Finite form of the Verb

The gerund is a non-finite verb form that functions as a noun in a sentence.

It is created by adding the suffix ing to the base form of a verb. The gerund can be used as a subject, object, or complement in a sentence

The Infinitive-Non-Finite form of the Verb

The infinitive is a verb form that typically uses the word to before the base form of the verb.

For example: to run, to walk, to eat, etc.

The infinitive form is often used as a noun, an adjective, or an adverb in a sentence.

The Subjunctive Mood

The subjunctive mood

is used to express a hypothetical or non-real action or state, and is often used to express doubt, uncertainty, or desire.

The verb to be is a particularly common verb used in the subjunctive mood.

The Sequence of Tenses

The Sequence of tenses refers to the relationship between the tenses in a sentence, particularly when there are multiple clauses with different tenses.

The basic principle behind the sequence of tenses is that the tense used in a subordinate clause (a clause that depends on or is part of another clause) is influenced by the tense used in the main clause.