"-ábamos" meaning in Spanish

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "-ābāmus"
      },
      "expansion": "Latin -ābāmus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin -ābāmus, through the variant *-ābămus (note the antepenultimate stress caused by irregular shortening of the last -ā-).",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "suffix form"
      },
      "expansion": "-ábamos",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "indicates the imperfect tense first-person plural form of an -ar verb"
      ],
      "id": "en--ábamos-es-suffix-BkfI21NY",
      "links": [
        [
          "imperfect tense",
          "imperfect tense#English"
        ],
        [
          "-ar",
          "-ar#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ábamos"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "es",
        "2": "la",
        "3": "-ābāmus"
      },
      "expansion": "Latin -ābāmus",
      "name": "inh"
    }
  ],
  "etymology_text": "From Latin -ābāmus, through the variant *-ābămus (note the antepenultimate stress caused by irregular shortening of the last -ā-).",
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "suffix form"
      },
      "expansion": "-ábamos",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Spanish entries with incorrect language header",
        "Spanish non-lemma forms",
        "Spanish suffix forms",
        "Spanish terms derived from Latin",
        "Spanish terms inherited from Latin"
      ],
      "glosses": [
        "indicates the imperfect tense first-person plural form of an -ar verb"
      ],
      "links": [
        [
          "imperfect tense",
          "imperfect tense#English"
        ],
        [
          "-ar",
          "-ar#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ábamos"
}