12 Types of Tenses: Rules, Formulas, and Examples

In English grammar, 'Tense' indicates the time of an action or event. The three main tenses (Past, Present, and Future) are each subdivided into four categories (Simple, Continuous, Perfect, Perfect Continuous), making a total of 12 tenses. Knowing their formulas is key to speaking and writing correct English.

Question (Click to Flip)

What is the difference between Simple Past and Past Perfect?

Answer

Simple Past talks about a finished action in the past. Past Perfect talks about a finished action that happened before another action in the past.

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Key Facts

V1 = Base form of verb, V2 = Past form, V3 = Past Participle.

'Continuous' tenses always require an '-ing' added to the verb.

'Perfect' tenses always require the V3 (third form) of the verb.

1. Present Tense Formulas

Simple Present: Subject + V1 (s/es) + Object. Example: She writes a letter.
Present Continuous: Subject + is/am/are + V1-ing + Object. Example: She is writing a letter.
Present Perfect: Subject + has/have + V3 + Object. Example: She has written a letter.
Present Perfect Continuous: Subject + has/have + been + V1-ing + Object. Example: She has been writing a letter for two hours.

2. Past Tense Formulas

Simple Past: Subject + V2 + Object. Example: She wrote a letter.
Past Continuous: Subject + was/were + V1-ing + Object. Example: She was writing a letter.
Past Perfect: Subject + had + V3 + Object. Example: She had written a letter.
Past Perfect Continuous: Subject + had + been + V1-ing + Object. Example: She had been writing a letter for two hours.

3. Future Tense Formulas

Simple Future: Subject + will/shall + V1 + Object. Example: She will write a letter.
Future Continuous: Subject + will be/shall be + V1-ing + Object. Example: She will be writing a letter.
Future Perfect: Subject + will have + V3 + Object. Example: She will have written a letter.
Future Perfect Continuous: Subject + will have been + V1-ing + Object. Example: She will have been writing a letter for two hours.

Questions and Answers

What is the difference between Simple Past and Past Perfect?+

Simple Past talks about a finished action in the past. Past Perfect talks about a finished action that happened *before* another action in the past.

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