In order to express the word manifested, you can either use the adjective manifestus or a perfect past participle.
Here's the adjective manifesus:
Singular:
Case |
Masculine |
Feminine |
Neuter |
Nom. |
manifēstus |
manifēsta |
manifēstum |
Gen. |
manifēstī |
manifēstae |
manifēstī |
Dat. |
manifēstō |
manifēstae |
manifēstō |
Acc. |
manifēstum |
manifēstam |
manifēstum |
Abl. |
manifēstō |
manifēstā |
manifēstō |
Voc. |
manifēste |
manifēsta |
manifēstum |
Plural:
Case |
Masculine |
Feminine |
Neuter |
Nom. |
manifēstī |
manifēstae |
manifēsta |
Gen. |
manifēstōrum |
manifēstārum |
manifēstōrum |
Dat. |
manifēstīs |
manifēstīs |
manifēstīs |
Acc. |
manifēstōs |
manifēstās |
manifēsta |
Abl. |
manifēstīs |
manifēstīs |
manifēstīs |
Voc. |
manifēstī |
manifēstae |
manifēsta |
Whether it's and adjective or a participle it has to agree in number, case, and gender with the noun it modifies. For example if you want to speak of "perfection manifested" in the nominative case, it would have to be the singular, feminine form to agree with perfectio:
perfectio manifesta
As for the participles, @brianpck pointed out in a comment that the verb manifesto is post-classical, so its perfect passive participle manifestatus (not to be confused with the adjective manifestus) is rarely used. Perhaps a better choice would be revelo, patefacio, or ostendo:
ostendere: to stretch out, spread before, expose to view, show, point
out, exhibit, display
patefacere: to disclose, expose, detect, bring to light
revelare: to unveil, uncover, lay bare
Participles are declined similar to the way that adjectives are:
Singular:
Case |
Masculine |
Feminine |
Neuter |
Nom. |
ostentus |
ostenta |
ostentum |
Gen. |
ostentī |
ostentae |
ostentī |
Dat. |
ostentō |
ostentae |
ostentō |
Acc. |
ostentum |
ostentam |
ostentum |
Abl. |
ostentō |
ostentā |
ostentō |
Voc. |
ostente |
ostenta |
ostentum |
Plural:
Case |
Masculine |
Feminine |
Neuter |
Nom. |
ostentī |
ostentae |
ostenta |
Gen. |
ostentōrum |
ostentārum |
ostentōrum |
Dat. |
ostentīs |
ostentīs |
ostentīs |
Acc. |
ostentōs |
ostentās |
ostenta |
Abl. |
ostentīs |
ostentīs |
ostentīs |
Voc. |
ostentī |
ostentae |
ostenta |