Questions & Answers about Ég vil ekki missa af leiknum í kvöld.
Because vil is the 1st person singular present form of the verb vilja (to want).
So the verb changes like this:
- ég vil = I want
- þú vilt = you want
- hann/hún/það vill = he/she/it wants
The dictionary form is vilja, but after ég you need the conjugated form vil.
Because vilja is followed by a bare infinitive in Icelandic.
So:
- Ég vil missa af leiknum. = I want to miss the game.
- Ég vil ekki missa af leiknum. = I do not want to miss the game.
You do not say ég vil að missa here.
Many Icelandic verbs behave this way, especially modal-like verbs such as vilja.