Questions & Answers about Jeg lægger bogen til side, når min ven kommer.
Because Danish (like English) conjugates the verb in the present tense.
- Infinitive: at lægge = to put/lay
- Present: (jeg) lægger = (I) put/lay
So jeg lægge would be ungrammatical in standard Danish.
Yes—lægge ... til side functions much like an English phrasal verb put ... aside.
- lægger = put/lay
- til side = aside (literally “to (the) side”)
You can think of it as: Jeg lægger [bogen] til side = I put [the book] aside.
Bogen is the definite form (“the book”), formed by adding the definite ending -en to bog:
- en bog = a book
- bogen = the book
In Danish, definiteness is often shown by a suffix (the “attached” the) rather than a separate word.