Questions & Answers about Vi är trötta och långsamma idag.
Why do trötta and långsamma both end with an '-a' here?
Because the subject of the sentence is vi (we), which is plural. When adjectives describe a plural subject, they must match it by taking an -a at the end. This is true even when they come after the verb (as predicative adjectives). The base singular forms are trött and långsam.
Why does långsamma have two 'm's when the base word is långsam?
This is a common Swedish spelling rule. When you add a vowel ending like the plural -a to a word ending in a short vowel sound followed by a single consonant, you double that consonant. The double 'm' in långsamma tells the reader to keep the preceding 'a' sound short.
Does the verb är change because the subject vi is plural?
No, Swedish verbs are very friendly! The verb är stays exactly the same no matter who the subject is or how many people there are. You say jag är (I am) just like you say vi är (we are).
How is the word och usually pronounced in a sentence like this?
In everyday spoken Swedish, the word och (and) is almost always pronounced just like a short 'o' or 'å'. The 'ch' is normally completely silent.