"হয়েছিলাম" meaning in Bengalese

{
  "categories": [
    {
      "kind": "other",
      "name": "Voci verbali in bengalese",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Bengalese",
  "lang_code": "bn",
  "pos": "verb",
  "pos_title": "Voce verbale",
  "senses": [
    {
      "form_of": [
        {
          "word": "stato"
        }
      ],
      "glosses": [
        "ero stato"
      ],
      "id": "it-হয়েছিলাম-bn-verb-ayUsBZF0",
      "tags": [
        "form-of"
      ]
    },
    {
      "form_of": [
        {
          "word": "stati"
        }
      ],
      "glosses": [
        "eravamo stati"
      ],
      "id": "it-হয়েছিলাম-bn-verb-cmwoVcPA",
      "tags": [
        "form-of"
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "হয়েছিলাম"
}

{
  "categories": [
    "Voci verbali in bengalese"
  ],
  "lang": "Bengalese",
  "lang_code": "bn",
  "pos": "verb",
  "pos_title": "Voce verbale",
  "senses": [
    {
      "form_of": [
        {
          "word": "stato"
        }
      ],
      "glosses": [
        "ero stato"
      ],
      "tags": [
        "form-of"
      ]
    },
    {
      "form_of": [
        {
          "word": "stati"
        }
      ],
      "glosses": [
        "eravamo stati"
      ],
      "tags": [
        "form-of"
      ]
    }
  ],
  "tags": [
    "form-of"
  ],
  "word": "হয়েছিলাম"
}