In Bamidbar 11:5 it says:
זָכַ֙רְנוּ֙ אֶת־הַדָּגָ֔ה אֲשֶׁר־נֹאכַ֥ל בְּמִצְרַ֖יִם חִנָּ֑ם אֵ֣ת הַקִּשֻּׁאִ֗ים וְאֵת֙ הָֽאֲבַטִּחִ֔ים וְאֶת־הֶחָצִ֥יר וְאֶת־הַבְּצָלִ֖ים וְאֶת־הַשּׁוּמִֽים׃
We remember the fish that we used to eat free in Egypt, the cucumbers, the melons, the leeks, the onions, and the garlic.
Why does it use the word נֹאכַ֥ל which is typically future tense when we are clearly talking about the past?