Questions & Answers about Mój mąż i ja byliśmy w Warszawie miesiąc temu.
Why does the verb use the -liśmy ending instead of -łyśmy?
The ending -liśmy is the virile (masculine personal) form for 'we'. You must use it whenever the group includes at least one man. Since the subject here is Mój mąż i ja (My husband and I), there is definitely a man in the group! If two women were speaking, they would use the non-virile form byłyśmy.
Why does Warszawa change to Warszawie here?
We are talking about being in a location, which requires the Locative case. The preposition w (in) makes feminine nouns ending in -a change their ending to -ie. For Warszawa, it becomes w Warszawie.
Does temu always come after the noun it goes with?
Yes! Temu means 'ago', and it always follows the time period you are talking about. So, 'a month ago' is exactly as written: 'month ago' (miesiąc temu).
Can I just say Byliśmy w Warszawie without the Mój mąż i ja part?
Absolutely. The ending -śmy in byliśmy already tells us the subject is 'we'. You only need to include Mój mąż i ja if you specifically want to clarify who that 'we' is. If the context is already clear, Byliśmy w Warszawie miesiąc temu is a perfect sentence.