Since vs For: Find the Time Anchor Before You Answer
This drill trains one fast decision: is the sentence showing the point where something started, or the length of time it continued?
Use since for a starting point
Look for a year, month, day, time, event, or clause that marks where the period began.
Use for for a duration
Look for an amount of time, such as three days, six months, another hour, or the duration of an event.
The decision difference: start point = since. Length of time = for. The anchor may appear before, beside, or after the blank, so scan the whole sentence.
The branch has operated from this location ___ it opened in 2018.
Answer: since. The anchor “it opened in 2018” is the starting event.
The branch was expected to remain closed ___ only one week.
Answer: for. The anchor “only one week” is the duration.
What Your Result Reveals
Your score shows more than whether you know the rule. It also shows whether you can locate the correct time anchor when it appears in different parts of a sentence.
Missed since items
Review whether you overlooked a starting event, date, clause, or change that began the continuing period.
Missed for items
Review whether the anchor expressed a duration, including another period, the past few months, or a defined event period.
Wrong anchor choices
Slow down just enough to distinguish the real time signal from background dates or competing duration phrases.