Breakdown of Bez wątpienia to jest dobry pomysł.
to
this
być
to be
dobry pomysł
good idea
bez wątpienia
without doubt, undoubtedly
Questions & Answers about Bez wątpienia to jest dobry pomysł.
Why does the word for 'doubt' end in '-a' here?
It is in the genitive case because the preposition bez (without) always requires the genitive. The base word is wątpienie, which is a verbal noun meaning 'doubting'. In the genitive, the -e changes to -a, giving us wątpienia.
Why is dobry pomysł in the nominative case here? Doesn't the verb jest require the instrumental case?
Normally, when you link two nouns with jest (like 'A is B'), the second noun takes the instrumental case. However, there is a special rule for the word to (this/it). Whenever you use the structure to jest (this is), the noun phrase that follows must stay in the nominative case. That is why it is dobry pomysł and not dobrym pomysłem.
Could I drop the word jest from this sentence?
Yes, you absolutely can. In Polish, it is very common and natural to drop the verb 'to be' when using the to + nominative structure. You will often hear people say Bez wątpienia to dobry pomysł, which means exactly the same thing.
Is wątpienie the normal noun for 'a doubt'?