What is the past perfect continuous?

The past perfect continuous is a past tense verb form used to describe actions that started in the past and continued until another point in the past. For example, “she had been running for an hour and was feeling exhausted.”

To form the past perfect continuous, place the auxiliary verbs “had” and “been” before the present participle (the “-ing” form) of the main verb (e.g., “They had been cooking”).

There are three other past tense forms: the simple past, past continuous (aka past progressive), and past perfect.

QuillBot’s free Grammar Checker can help you with correct spellings and endings when you’re using different verb tenses.

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What is the simple present form of “be”?

“Be” is a stative verb and linking verb and is the most irregular verb in English. It has three simple present tense forms: “am,” “is,” and “are.”

“Am” is used for a first person subject (e.g., “I am Spanish”).

“Are” is used for plural subjects (e.g., “we are Spanish”) and for both singular and plural second person subjects (e.g., “you are Spanish”).

“Is” is used for a third person singular subject (e.g., “he/she/it is Spanish”).

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What is a full infinitive?

A full infinitive is the base form of the verb preceded by “to” (e.g., “to drink”). A bare infinitive, on the other hand, is simply the base form of the verb without “to” (e.g., “drink”).

Infinitives can be used as subjects, direct objects, adverbs, and adjectives. Full infinitives are more common than bare infinitives, and several verbs can only be followed by full infinitives (e.g., “I promise to visit” not “I promise visit”).

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What is a bare infinitive?

A bare infinitive is the same as the base or dictionary form of the verb (e.g., “eat”), while a full infinitive is the base form of the verb preceded by “to” (e.g., “to eat”).

Bare infinitives often follow modal verbs (e.g., “we can fly”), the auxiliary verb “do” (e.g., “don’t touch”), and sense verbs (e.g., “I saw him run”).

There are a few verbs, such as “let” and “make,” that must be followed by bare infinitives instead of full infinitives (e.g., “let me try” not “let me to try”).

Infinitives have many uses, including functioning as subjects, direct objects, adjectives, and adverbs.

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