used to
Past habit that is no longer true · I used to smoke.
Grammar bridge
Time chooses the verb form
24 / 27
will + base
Future decision or result · I will tell you.
was / were + -ing
Action in progress in the past · I was driving.
word order
Subject + verb + object first; place and time follow.
Find the time signal, then build the verb. Do not choose a tense by sound alone.
References: Class 1 slides 5–9 · Class 5 slides 18, 25–26, 34, and 43–44.