The Latin fourth conjugation has an infinitive ending in -īre . The stem ends in an "i". They descend from Proto-Italic *-jō , from Proto-Indo-European *-yeti .
audiō , audīre , audīvī , audītus — to hear
Person
Singular
Meaning
Plural
Meaning
1st
audiō
I hear
audīmus
We hear
2nd
audīs
You hear
audītis
You (pl.) hear
3rd
audit
He/she/it hears
audiunt
They hear
Person
Singular
Meaning
Plural
Meaning
1st
audiēbam
I was hearing
audiēbāmus
We were hearing
2nd
audiēbās
You were hearing
audiēbātis
You (pl.) were hearing
3rd
audiēbat
He/she/it was hearing
audiēbant
They were hearing
Person
Singular
Meaning
Plural
Meaning
1st
audiam
I will hear
audiēmus
We will hear
2nd
audiēs
You will hear
audiētis
You (pl.) will hear
3rd
audiet
He/she/it will hear
audient
They will hear
Person
Singular
Meaning
Plural
Meaning
1st
audīvī
I have heard
audīvimus
We have heard
2nd
audīvistī
You have heard
audīvistis
You (pl.) have heard
3rd
audīvit
He/she/it has heard
audīvērunt
They have heard
Person
Singular
Meaning
Plural
Meaning
1st
audīveram
I had heard
audīverāmus
We had heard
2nd
audīverās
You had heard
audīverātis
You (pl.) had heard
3rd
audīverat
He/she/it had heard
audīverant
They had heard
Person
Singular
Meaning
Plural
Meaning
1st
audīverō
I will have heard
audīverimus
We will have heard
2nd
audīveris
You will have heard
audīveritis
You (pl.) will have heard
3rd
audīverit
He/she/it will have heard
audīverint
They will have heard
Person
Singular
Meaning
Plural
Meaning
1st
audior
I am heard
audīmur
We are heard
2nd
audīris
You are heard
audīminī
You (pl.) are heard
3rd
audītur
He/she/it is heard
audiuntur
They are heard
Person
Singular
Meaning
Plural
Meaning
1st
audiēbar
I was heard
audiēbāmur
We were heard
2nd
audiēbāris
You were heard
audiēbāmini
You (pl.) were heard
3rd
audiēbātur
He/she/it was heard
audiēbantur
They were heard
Person
Singular
Meaning
Plural
Meaning
1st
audiar
I will be heard
audiēmur
We will be heard
2nd
audiēris
You will be heard
audiēminī
You (pl.) will be heard
3rd
audiētur
He/she/it will be heard
audientur
They will be heard
Person
Singular
Meaning
Plural
Meaning
1st
audītus sum
I have been heard
audītī sumus
We have been heard
2nd
audītus es
You have been heard
audītī estis
You (pl.) have been heard
3rd
audītus est
He/she/it has been heard
audītī sunt
They have been heard
Note: The participle is inflected for gender and number like a first- and second-declension adjective.
Person
Singular
Meaning
Plural
Meaning
1st
audītus eram
I had been heard
audītī erāmus
We had been heard
2nd
audītus erās
You had been heard
audītī erātis
You (pl.) had been heard
3rd
audītus erat
He/she/it had been heard
audītī erant
They had been heard
Note: The participle is inflected for gender and number like a first- and second-declension adjective.
Person
Singular
Meaning
Plural
Meaning
1st
audītus erō
I will have been heard
audītī erimus
We will have been heard
2nd
audītus eris
You will have been heard
audītī eritis
You (pl.) will have been heard
3rd
audītus erit
He/she/it will have been heard
audītī erunt
They will have been heard
Note: The participle is inflected for gender and number like a first- and second-declension adjective.
Person
Singular
Meaning
Plural
Meaning
1st
audiam
I may hear
audiāmus
We may hear
2nd
audiās
You may hear
audiātis
You (pl.) may hear
3rd
audiat
He/she/it may hear
audiant
They may hear
Person
Singular
Meaning
Plural
Meaning
1st
audīrem
I should hear
audīrēmus
We should hear
2nd
audīrēs
You would hear
audīrētis
You (pl.) would hear
3rd
audīret
He/she/it would hear
audīrent
They would hear
Person
Singular
Meaning
Plural
Meaning
1st
audīverim
I may have heard
audīverīmus
We may have heard
2nd
audīverīs
You may have heard
audīverītis
You (pl.) may have heard
3rd
audīverit
He/she/it may have heard
audīverint
They may have heard
Person
Singular
Meaning
Plural
Meaning
1st
audīvissem
I should have heard
audīvissēmus
We should have heard
2nd
audīvissēs
You would have heard
audīvissētis
You (pl.) would have heard
3rd
audīvisset
He/she/it would have heard
audīvissent
They would have heard
Passive subjunctive [ edit ]
Person
Singular
Meaning
Plural
Meaning
1st
audiar
I may be heard
audiāmur
We may be heard
2nd
audiāris
You may be heard
audiāminī
You (pl.) may be heard
3rd
audiātur
He/she/it may be heard
audiantur
They may be heard
Person
Singular
Meaning
Plural
Meaning
1st
audīrer
I should be heard
audīrēmur
We should be heard
2nd
audīrēris
You would be heard
audīrēminī
You (pl.) would be heard
3rd
audīrētur
He/she/it would be heard
audīrentur
They would be heard
Person
Singular
Meaning
Plural
Meaning
1st
audītus sim
I may have been heard
audītī sīmus
We may have been heard
2nd
audītus sīs
You may have been heard
audītī sītis
You (pl.) may have been heard
3rd
audītus sit
He/she/it may have been heard
audītī sint
They may have been heard
Note: The participle is inflected for gender and number like a first- and second-declension adjective.
Person
Singular
Meaning
Plural
Meaning
1st
audītus essem
I should have been heard
audītī essēmus
We should have been heard
2nd
audītus essēs
You would have been heard
audītī essētis
You (pl.) would have been heard
3rd
audītus esset
He/she/it would have been heard
audītī essent
They would have been heard
Note: The participle is inflected for gender and number like a first- and second-declension adjective.
Active
Audī! (sing.) Hear!
Audīte! (pl.) Hear!
Passive
Audire! (sing.) Be heard!
Audimini! (pl.) Be heard!
Infinitives and participles [ edit ]