"haber de" meaning in Espagnol

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en espagnol",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en espagnol",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Espagnol",
      "orig": "espagnol",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de haber et de de."
  ],
  "lang": "Espagnol",
  "lang_code": "es",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Verbes auxiliaires en espagnol",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Verbes impersonnels en espagnol",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Devoir."
      ],
      "id": "fr-haber_de-es-verb-aoJOHTop",
      "raw_tags": [
        "Auxiliaire"
      ],
      "tags": [
        "impersonal"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "deber"
    },
    {
      "word": "tener que"
    }
  ],
  "word": "haber de"
}

{
  "categories": [
    "Compositions en espagnol",
    "Locutions verbales en espagnol",
    "espagnol"
  ],
  "etymology_texts": [
    "Composé de haber et de de."
  ],
  "lang": "Espagnol",
  "lang_code": "es",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "senses": [
    {
      "categories": [
        "Verbes auxiliaires en espagnol",
        "Verbes impersonnels en espagnol"
      ],
      "glosses": [
        "Devoir."
      ],
      "raw_tags": [
        "Auxiliaire"
      ],
      "tags": [
        "impersonal"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "deber"
    },
    {
      "word": "tener que"
    }
  ],
  "word": "haber de"
}