More specifically, I'm wondering if languages can put into 1 word what in English takes multiple words. For example, in English you can say "Speak!" to say basically "You speak!". In Spanish you can get more complex with "¡Dámelo!" to say "Give it to me!" in one word. I'm wondering what some of the more complex examples of using 1 word to say a complete sentence in another language looks like.
For example, maybe you can say "I go to the store" in one word in some language, or "I went to the store". Maybe it can get more complex than
<subject> <verb> <object> though. Maybe more like, "I watch a movie at the park with my friend in the past." Or using grammatical tense, "I watched a movie at the park with my friend." In English as one word you could potentially build "moviedaparkndate" lol. That's not really a thing to do in English, but I tried.
If there are languages where you can build arbitrarily-long complex words (I think someone told me German had large words like this), then I'm wondering how you would decide to divide "strings" up into individual words, but will save that for another question perhaps.
Trying to get a sense of how much you can cram into a single word.
Also not looking for predefined idioms or things in which it is just a norm to say something in one word but it is a complete sentence. Looking instead for complete sentences constructed purely out of the grammar.