Questions & Answers about Pracujmy z nim po przerwie.
How do we form the 'let's' command in pracujmy?
It comes from the verb pracować (to work). To make the 'let's' form (first-person plural imperative), we take the present tense 'he/she/it' form pracuje, drop the final -e to get the stem pracuj, and add the ending -my.
Why does the word for 'him' become nim in this sentence?
The preposition z meaning 'with' always requires the following word to be in the Instrumental case. The basic word for 'he' is on, and its special Instrumental form is nim.
Why does przerwa (break) change to przerwie after po?
The preposition po (when meaning 'after' in time) requires the Locative case. Because przerwa is a feminine noun ending in -a, it changes to -ie in the Locative. The w also softens to wi, giving us po przerwie.