Present tense expresses an unchanging, repeated, or reoccurring action or situation that exists only now. It can also represent a widespread truth.
Example | Meaning |
| The mountains are tall and white. | Unchanging action |
| Every year, the school council elects new members. | Recurring action |
| Pb is the chemical symbol for lead. | Widespread truth |
Past tense expresses an action or situation that was started and finished in the past. Most past tense verbs end in -ed. The irregular verbs have special past tense forms which must be memorized.
Example | Form |
| W.W.II ended in 1945. | Regular -ed past |
| Ernest Hemmingway wrote "The Old Man and the Sea." | Irregular form |
Future tense expresses an action or situation that will occur in the future. This tense is formed by using will/shall with the simple form of the verb.
The future tense can also be expressed by using am, is, or are with going to.
We can also use the present tense form with an adverb or adverbial phrase to show future time.
Present progressive tense describes an ongoing action that is happening at the same time the statement is written. This tense is formed by using am/is/are with the verb form ending in -ing.
Past progressive tense describes a past action which was happening when another action occurred. This tense is formed by using was/were with the verb form ending in -ing.
Future progressive tense describes an ongoing or continuous action that will take place in the future. This tense is formed by using will be or shall be with the verb form ending in -ing.
Present perfect tense describes an action that happened at an indefinite time in the past or that began in the past and continues in the present.This tense is formed by using has/have with the past participle of the verb. Most past participles end in -ed. Irregular verbs have special past participles that must be memorized.
Example | Meaning |
| The researchers have traveled to many countries in order to collect more significant data. | At an indefinite time |
| Women have voted in presidential elections since 1921. | Continues in the present |
Past perfect tense describes an action that took place in the past before another past action. This tense is formed by using had with the past participle of the verb.
Future perfect tense describes an action that will occur in the future before some other action. This tense is formed by using will have with the past participle of the verb.
Present perfect progressive tense describes an action that began in the past, continues in the present, and may continue into the future. This tense is formed by using has/have been and the present participle of the verb (the verb form ending in -ing).
Past perfect progressive tense describes a past, ongoing action that was completed before some other past action. This tense is formed by using had been and the present perfect of the verb (the verb form ending in -ing).
Future perfect progressive tense describes a future, ongoing action that will occur before some specified future time. This tense is formed by using will have been and the present participle of the verb (the verb form ending in -ing).
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