Basic to Advanced of Tense

Structure of All 12 Tenses

Indefinite Tense

Tense	Structure
Present Indefinite	Subject + base verb (+s/es)
Past Indefinite	Subject + past form of verb
Future Indefinite	Subject + will + base verb

Continuous Tense

Tense	Structure
Present Continuous	Subject + am/is/are + verb+ing
Past Continuous	Subject + was/were + verb+ing
Future Continuous	Subject + will be + verb+ing

Perfect Tense

Tense	Structure
Present Perfect	Subject + has/have + past participle
Past Perfect	Subject + had + past participle
Future Perfect	Subject + will have + past participle

Perfect Continuous Tense

Tense	Structure
Present Perfect Continuous	Subject + has/have been + verb+ing
Past Perfect Continuous	Subject + had been + verb+ing
Future Perfect Continuous	Subject + will have been + verb+ing