VOA慢速英语--Understanding the Past Participle（在线收听）

Every language has its own way of saying something happened in the past, is happening now or will happen in the future. As you know, English does this through verb tenses.

Most English tenses use a word form called a "participle." There are present participles and past participles. Take the statement "I have been to Atlanta." It uses "been," which is the past participle of the verb "be."

In addition to forming verb tenses, the past participle can form two other things. One is the passive voice and the other is adjectives. On today's program, I will talk about all three of these.

Recognize past participles

By now in your English studies, you have heard and seen the past participle countless times. You just may not have known what it was called. In fact, I used it a few times in this paragraph alone.

The past participle is everywhere so let me begin with a quick discussion about recognizing it.

You probably know that the past tense of a regular verb ends in -ed, as in "I talked to my friend." For regular verbs, the past participle also ends in -ed. In other words, it is identical, as in "I have talked to her about my plans."

Most English verbs are regular, so most of their past participles are identical to the past tense.

But for irregular verbs, the past participles and past tenses are not the same. Think of the verb "take" as an example. Its past tense is "took," as in "I took my mother to the park." The past participle is "taken," as in "She has taken that flight many times."

The perfect tenses

OK, now let's get into today's subject: the three uses for past participles.

The first we will look at is perfect verb tenses.

As a reminder, a perfect tense is one that puts some form of the verb "have" before its main verb. Take one of my examples again:

She has taken that flight many times.

I used the present perfect tense, which is have or has + past participle.

Knowing the name of this or other verb tenses is not important for today's lesson. The thing to remember is this: All perfect tenses in English include the past participle.

Listen for it in this next example:

She had studied English before moving to the U.S.

The speaker used the past participle "studied" as part of the past perfect verb "had studied."

Again, do not worry if you do not know the names of these verb tenses. Simply note that they are perfect tenses and perfect tenses use past participles.

The passive voice

Next, let's talk about the passive voice – the second use for the past participle.

Here is a quick refresher:

In most sentences in English, the subject performs the action of the verb. Take the example "You called a friend." The subject is "You" and the subject performs the action "called."

But sometimes the subject is acted upon or receives the action of the verb. This is called the passive voice. Imagine that someone steals your bike. You could say, "My bike was stolen." There is no mention of the person because you do not know who did it.

We can use passive voice when we do not know who or what performed the action or when identifying the performer is not important.

In English, the most basic passive voice is formed with be + past participle. Let's examine the bike example:

My bike was stolen.

Here, the verb "be" appears in the past tense "was." And "stolen" is the past participle of "steal."

Listen for be + past participle in this next example:

The dish is cooked over an open fire.

Here, the verb "be" is in the present tense "is." "Cook" is a regular verb, so its past participle is "cooked."

Use as adjectives

And, finally, we turn to adjectives – the third use for past participles.

Only some past participles can be used as adjectives. These adjectives are a little different from normal ones because they generally describe how someone feels.

The adjective "bored" is a good example. If you wanted to describe this feeling in a group of children, you could say this:

The children are bored.

Notice that the adjective comes after the linking verb "be." You can learn more about linking verbs on earlier programs.

Now, suppose these same children begin to misbehave. You could say this:

The bored children are getting into trouble.

Here, the speaker put the adjective "bored" before the noun "children."

When past participles act as adjectives, they appear in the same places as normal adjectives – after linking verbs and before nouns. But, note again that these kinds of adjectives describe a person or people's feelings.

And that's Everyday Grammar for this week.

I'm Alice Bryant.

Words in This Story

tense – n. a form of a verb that is used to show when an action happened

passive voice – n. a way of writing or speaking that uses passive verbs

paragraph – n. a part of a piece of writing that usually that begins on a new line and often is made up of a few sentences

regular – adj. following the normal patterns by which word forms

identical – adj. exactly the same

mention – n. to talk about, write about, or refer to something or someone, especially in a brief way

dish – n. food that is prepared in a particular way

bored – adj. tired and annoyed you are unoccupied or do not have interest in your current activity.

linking verb – n. a verb (such as be, appear or become) that connects a subject with an adjective or noun that describes or identifies the subject