Learn Swedish: Utsikten är lyckligtvis helt magisk. - The view is fortunately completely magical.

It is built from the adjective lycklig (happy). First, it is put into its neuter or adverb form by adding a -t, becoming lyckligt. Then, the suffix -vis is added. The suffix -vis means "way" or "manner", so lyckligtvis literally translates to "in a happy way", which is used to mean "fortunately" or "luckily".

Where should sentence adverbs like lyckligtvis be placed in a Swedish sentence?

In a standard main clause, a sentence adverb usually comes immediately after the first verb. In this sentence, it naturally follows the verb är. You can also start the sentence with it to add emphasis, but remember to follow the V2 (verb-second) rule: Lyckligtvis är utsikten helt magisk.

Why is the word for "completely" written as helt with a -t at the end?

Helt is based on the adjective hel (whole or entire). When you use an adjective as an adverb to modify another descriptive word—like describing exactly how magisk the view is—you must add a -t to the end of it.

If helt gets a -t ending, why doesn't magisk get one too?