"Dad came to the sea" is also a good solution, as בא is the present and past form of לבוא
Spot on, I've added it.
And in another subject, is there a way to contribute to the Hebrew course? I'm a native speaker and study the language very deeply, so I think I can contribute to the efforts of bringing the course to "non-beta" stage
I'll answer on your wall.
is strange in being pa'al, but with only 2 letters in its "He" past form. Its imperative conjugations differ from most pa'al verbs with respect to conjugation homography patterns
It's part of "גזרה" called (חסרי) ע"ו. Which means the second letter of the shoresh (like ע in פעל) is וי"ו and is missing in many conjunctions. Other examples:
שר - שר - ישיר - שיר - לשיר
רץ - רץ - ירוץ - רוץ - לרוץ