Questions & Answers about Glaset är fullt igen.
Why is the adjective fullt spelled with a 't' here instead of just full?
Because glas is an ett-word (ett glas). In Swedish, adjectives must agree with the noun they describe. Since glaset is an ett-word, the adjective full takes a -t at the end. This rule applies even when the adjective comes after the verb (in the predicative position).
Why is glaset spelled with only one 's'? Doesn't a short word usually double its consonant?
In Swedish, you only double the final consonant if the preceding vowel is short. The word glas has a long 'a' sound, so the 's' is not doubled when adding the definite ending -et. If it were spelled glasset, it would have a short 'a' sound and mean 'the ice cream' instead!
Where does igen usually go in a sentence? Can I say 'Glaset är igen fullt'?
No, saying 'Glaset är igen fullt' sounds unnatural. Adverbs like igen (again) generally belong at the very end of a simple main clause. Unlike sentence adverbs such as inte (not) or alltid (always), which go right after the first verb, igen is placed at the end.