Learn Hardcore Norwegian: Jeg kommer sannsynligvis tidlig til møtet. - I will probably come early to the meeting.

In Norwegian, the present tense of å komme can express a planned future action. So Jeg kommer literally means “I come,” but contextually it works like English “I will come” or “I’m coming.” If you want to emphasize the future even more, you can add skal:
“Jeg skal komme sannsynligvis tidlig til møtet.”

What part of speech is sannsynligvis, and how is it formed?

Sannsynligvis is an adverb meaning “probably.” It’s formed from the adjective sannsynlig (“likely”) plus the adverbial suffix -vis, which is a common way in Norwegian to turn adjectives into adverbs (similar to ”-ly” in English).

Why is sannsynligvis placed before tidlig? Can Norwegian adverbs move around?

Norwegian adverbs follow a general order: subject – verb – degree adverb – time adverb – place. Here, sannsynligvis is a degree adverb (“probably”) and comes right after the verb kommer, while tidlig is a time adverb (“early”) and follows it. Technically you could say “Jeg kommer tidlig sannsynligvis…,” but it sounds awkward. The preferred sequence is exactly as in your sentence.

Why does the sentence use til møtet (to the meeting) instead of på møtet (at the meeting)?

Use til when you talk about going or arriving somewhere (direction). Jeg kommer til møtet = “I am coming/arriving at the meeting.”
Use på when you’re already there: Jeg er på møtet = “I am at the meeting.”

Why is it møtet rather than just møte or et møte?

Møtet is the definite form of møte (“meeting”). In Norwegian you attach the definite article as a suffix: møte + -et → møtet (“the meeting”). Since you’re referring to a specific meeting everyone knows about, you use the definite form.

Can I start the sentence with Sannsynligvis instead of Jeg?

Yes. Norwegian follows the V2 (verb-second) rule. If you put Sannsynligvis first, the verb still stays in position two:
“Sannsynligvis kommer jeg tidlig til møtet.”

Does tidlig change form when it’s an adverb? It looks like an adjective.

No. In Norwegian many adverbs have the same form as the indefinite adjective. Tidlig works both as “early” (adjective) and “early” (adverb). You don’t add any extra ending when using it as an adverb.

Are there other words for “probably” in Norwegian?

Yes. Some common synonyms are antageligvis (very close to sannsynligvis) and muligens (meaning “possibly,” slightly weaker). For example:
“Jeg kommer antageligvis tidlig til møtet.”
“Jeg kommer muligens tidlig til møtet.”