Questions & Answers about Ég gæti komið á morgun.
Gæti comes from the verb geta. In this sentence it expresses a tentative possibility, so it often corresponds to English could or might.
It is historically a past subjunctive form, but that does not mean the sentence is talking about the past. Here it refers to a possible future action.
Compare:
- Ég get komið á morgun. = I can / am able to come tomorrow.
- Ég gæti komið á morgun. = I could / might come tomorrow.
So yes, the form is technically related to the past, but the meaning here is about possibility, not past time.
After geta, Icelandic normally uses the sagnbót form (often called the supine) rather than the dictionary infinitive.
So with koma:
- dictionary form: koma
- form used after geta: komið
That is why Icelandic says:
- Ég get komið
- Ég gæti komið
not Ég get koma or Ég gæti koma.
This is a very common pattern, and learners usually just have to get used to it.