Verbs have one of two voices: active or passive. Until now, we've only seen the active voice, which is used when the subject of the sentence performs the action of the verb:
The passive voice is used when the subject is the person or thing acted upon:
In English, we normally represent the passive with a participle, like “chased” in that sentence. Latin does this too, in the past tense; but in the present system (present, imperfect, and future tenses), it uses special personal endings instead. Let's compare them to the active personal endings that we know so well by now.
| Active | Passive | |
|---|---|---|
| 1st person singular (I) | -o or -m | -or or -r |
| 2nd person sing. (you) | -s | -ris1) |
| 3rd person sing. (he, she, it) | -t | -tur |
| 1st person plural (we) | -mus | -mur |
| 2nd person plural (you) | -tis | -minī |
| 3rd person plural (they) | -nt | -ntur |
As you can see, there are similarities, but plenty of differences too, so we simply have to memorize these like we did the active endings.
To form the present, imperfect, and future tense in the passive, we add these endings with the same tense-signs that we did in the active, with a couple exceptions. Let's see the first conjugation, and then we'll compare all four conjugations side-by-side, with the exceptions in bold.
| Singular | Plural | |
|---|---|---|
| 1st person | amor I am loved | amāmur we are loved |
| 2nd person | amāris you are loved | amāmini you are loved |
| 3rd person | amātur he is loved | amantur they are loved |
Notice that -or replaces the -a- of the stem just as -o does in the active. Also notice that -a- becomes long except before -ntur.
| Singular | Plural | |
|---|---|---|
| 1st person | amābar I was being loved | amābāmur we were being loved |
| 2nd person | amābāris you were being loved | amābāmini you were being loved |
| 3rd person | amābātur he was being loved | amābantur they were being loved |
Notice that the first person singular ending here is -r, not -or, since amabaor would be difficult to pronounce and -bor will be used in the future tense.
| Singular | Plural | |
|---|---|---|
| 1st person | amābor I will be loved | amābimur we will be loved |
| 2nd person | amāberis you will be loved | amābimini you will be loved |
| 3rd person | amābitur he will be loved | amābuntur they will be loved |
Note the -i- of the tense-sign becomes -e- in the future passive second person singular. We'll see this in the other conjugations as well. The stem vowel becomes -u- in the third person plural just as it does in the future active.
The passive imperative endings are -re (singular) and -minī (plural).
| Singular | Plural |
|---|---|
| amāre be called! | amāminī be called! |
Now let's look at all the conjugations side-by-side.
| Present Passive | |||||
|---|---|---|---|---|---|
| 1st Conj. | 2nd | 3rd | 3rd I-stems | 4th | |
| 1st sing. | amor | moveor | ducor | capior | audior |
| 2nd sing. | amāris | movēris | dūceris | caperis | audīris |
| 3rd sing. | amātur | movētur | dūcitur | capitur | audītur |
| 1st. pl. | amāmur | movēmur | dūcimur | capimur | audīmur |
| 2nd. pl. | amāminī | movēminī | dūciminī | capiminī | audīminī |
| 3rd. pl. | amantur | moventur | dūcuntur | capiuntur | audiuntur |
| Imperfect Passive | |||||
| 1st sing. | amābar | movēbar | dūcēbar | capiēbar | audiēbar |
| 2nd sing. | amābāris | movēbāris | dūcēbāris | capiēbāris | audiēbāris |
| 3rd sing. | amābātur | movēbātur | dūcēbātur | capiēbātur | audiēbātur |
| 1st. pl. | amābāmur | movēbāmur | dūcēbāmur | capiēbāmur | audiēbāmur |
| 2nd. pl. | amābāminī | movēbāminī | dūcēbāminī | capiēbāminī | audiēbāminī |
| 3rd. pl. | amābantur | movēbantur | dūcēbantur | capiēbantur | audiēbantur |
| Future Passive | |||||
| 1st sing. | amābor | movēbor | dūcar | capiar | audiar |
| 2nd sing. | amāberis | movēberis | dūcēris | capiēris | audiēris |
| 3rd sing. | amābitur | movēbitur | dūcētur | capiētur | audiētur |
| 1st. pl. | amābimur | movēbimur | dūcēmur | capiēmur | audiēmur |
| 2nd. pl. | amābiminī | movēbiminī | dūcēminī | capiēminī | audiēminī |
| 3rd. pl. | amābuntur | movēbuntur | dūcentur | capientur | audientur |
| Passive Imperative | |||||
| singular | amāre | movēre | dūcere | capere | audire |
| plural | amāminī | movēminī | dūciminī | capiminī | audīminī |
Note the exceptions in bold. In the present passive second person singular, third conjugation verbs replace the -i- of the stem with -e-. In the future passive second person singular, the same thing happens to the -i- of the tense-sign in the first and second conjugation. In the imperative singular of third conjugation I-stems, the -i- of the stem becomes -e-, just as it does in the active voice.
Other than those exceptions, there's nothing new here except the endings. Take the verb stem, apply the tense-signs as we've learned them, and add the passive endings.
(No new vocabulary this lesson; I think there's enough to learn already, and nearly all the verbs we already know can be used in the passive voice.)
Some verbs are never used in the passive voice. These verbs can be recognized by the lack of a fourth principal part. We've seen a couple of them already.
So the Romans never said, “The wine was drank by Marcus,” at least not with the word bibō.
The passive of all four conjugations is a lot to absorb, so I kept this lesson short and didn't add anything else. Next lesson we'll cover the past tenses of the passive, which are very simple.