The phrase "puer bonus" is Latin for "good boy." To decline it, we can break it down into its components:
- Puer (meaning "boy") - this is a second declension masculine noun.
- Bonus (meaning "good") - this is a first/second declension adjective that agrees with the noun in gender, number, and case.
Here is the declension:
Puer (Boy)
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Nominative Singular: puer
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Genitive Singular: pueri
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Dative Singular: puero
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Accusative Singular: puerum
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Ablative Singular: puero
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Nominative Plural: pueri
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Genitive Plural: puerorum
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Dative Plural: pueris
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Accusative Plural: pueros
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Ablative Plural: pueris
Bonus (Good)
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Nominative Singular (masculine): bonus
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Genitive Singular: boni
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Dative Singular: bono
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Accusative Singular: bonum
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Ablative Singular: bono
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Nominative Plural (masculine): boni
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Genitive Plural: bonorum
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Dative Plural: bonis
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Accusative Plural: bonos
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Ablative Plural: bonis
Putting it all together, you can decline "puer bonus" in different cases. For example:
- Nominative Singular: puer bonus (good boy)
- Genitive Singular: pueri boni (of the good boy)
- Dative Singular: puero bono (to/for the good boy)
- Accusative Singular: puerum bonum (good boy - as a direct object)
- Ablative Singular: puero bono (by/with/from the good boy)
And similarly for plural forms.