Verbs work for those who want to make sentences. There - work and make, there you already have two. And try to make Russian out of that sentence if you if you don’t know работать or делать. So work, also on your vocabulary.
Forming the past tense (прошедшее время) in Russian is very simple. Perhaps the easiest aspect of the entire Russian grammar. The number of variations is limited, and conjugations are not complicated.
Many Russian verbs end in -ать or -ить. Both categories have their own conjugations. Verbs ending in -ать follow the first or е/ё conjugation; if they end in -ить, then the second or и conjugation applies (exceptions and irregularities aside).
A short poem (called ‘Woordenschat’ – Vocabulary) by Jaap van Lakerveld goes like this:
A man whose small vocabulary
I estimate to be six words
says to the woman who loves him
when she asks how he feels about her
‘I don’t have the words, my dear’