"perfect infinitive" meaning in English

{
  "forms": [
    {
      "form": "perfect infinitives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s"
      },
      "expansion": "perfect infinitive (plural perfect infinitives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Systems",
          "orig": "en:Systems",
          "parents": [
            "Interdisciplinary fields",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "(to) have gone",
          "type": "example"
        }
      ],
      "glosses": [
        "In English, an infinitival phrase consisting of the infinitive of the auxiliary \"have\" (with or without a preceding \"to\") plus the past participle; a comparable phrase or word in other languages."
      ],
      "id": "en-perfect_infinitive-en-noun-wJBnGpqN",
      "links": [
        [
          "past participle",
          "past participle#English"
        ]
      ],
      "related": [
        {
          "word": "perfect tense"
        }
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "nonfinite word or phrase equivalent to an infinite expressed in the perfect aspect",
          "tags": [
            "masculine"
          ],
          "word": "infinitif passé"
        }
      ]
    }
  ],
  "word": "perfect infinitive"
}

{
  "forms": [
    {
      "form": "perfect infinitives",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "s"
      },
      "expansion": "perfect infinitive (plural perfect infinitives)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "perfect tense"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with usage examples",
        "en:Systems"
      ],
      "examples": [
        {
          "text": "(to) have gone",
          "type": "example"
        }
      ],
      "glosses": [
        "In English, an infinitival phrase consisting of the infinitive of the auxiliary \"have\" (with or without a preceding \"to\") plus the past participle; a comparable phrase or word in other languages."
      ],
      "links": [
        [
          "past participle",
          "past participle#English"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "nonfinite word or phrase equivalent to an infinite expressed in the perfect aspect",
      "tags": [
        "masculine"
      ],
      "word": "infinitif passé"
    }
  ],
  "word": "perfect infinitive"
}