"how've" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "how",
        "3": "'ve",
        "alt2": "’ve"
      },
      "expansion": "how + -’ve",
      "name": "suffix"
    }
  ],
  "etymology_text": "how + -’ve",
  "forms": [
    {
      "form": "how’ve",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": "how’ve"
      },
      "expansion": "how’ve",
      "name": "head"
    },
    {
      "args": {
        "head": "how’ve"
      },
      "expansion": "how’ve",
      "name": "en-cont"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "how have"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -'ve",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "How’ve you been?"
        }
      ],
      "glosses": [
        "Contraction of how have."
      ],
      "id": "en-how've-en-contraction-QsNyxvqP",
      "links": [
        [
          "how",
          "how#English"
        ],
        [
          "have",
          "have#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Contraction of how have."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "colloquial",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/haʊv/"
    },
    {
      "rhymes": "-aʊv"
    }
  ],
  "word": "how've"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "how",
        "3": "'ve",
        "alt2": "’ve"
      },
      "expansion": "how + -’ve",
      "name": "suffix"
    }
  ],
  "etymology_text": "how + -’ve",
  "forms": [
    {
      "form": "how’ve",
      "tags": [
        "canonical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "contraction",
        "head": "how’ve"
      },
      "expansion": "how’ve",
      "name": "head"
    },
    {
      "args": {
        "head": "how’ve"
      },
      "expansion": "how’ve",
      "name": "en-cont"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "contraction",
  "senses": [
    {
      "alt_of": [
        {
          "word": "how have"
        }
      ],
      "categories": [
        "English 1-syllable words",
        "English colloquialisms",
        "English contractions",
        "English entries with incorrect language header",
        "English non-lemma forms",
        "English terms suffixed with -'ve",
        "English terms with IPA pronunciation",
        "Rhymes:English/aʊv",
        "Rhymes:English/aʊv/1 syllable"
      ],
      "examples": [
        {
          "text": "How’ve you been?"
        }
      ],
      "glosses": [
        "Contraction of how have."
      ],
      "links": [
        [
          "how",
          "how#English"
        ],
        [
          "have",
          "have#English"
        ]
      ],
      "raw_glosses": [
        "(colloquial) Contraction of how have."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "colloquial",
        "contraction"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/haʊv/"
    },
    {
      "rhymes": "-aʊv"
    }
  ],
  "word": "how've"
}