Ok, so apparently the only technically correct version is the second alternative here. Others have disagreed, but I wish to try and understand this particular opinion before disregarding it. It's only fair, right?
I left home early to make sure I had extra time in case I got lost.
I left home early to make sure I would have extra time in case I got lost.
The following answer was given for why only the second is correct:
The future perfect "represents that an action or state will be completed at or before a certain time yet future." The temporal point of reference is that set by the speaker/writer, who, by beginning in the simple past, has marked that as the reference point for determining futurity.
Can someone explain this to me? Where is the future perfect in this sentence? [:^)]
Top answer
I see no future perfect here. Both of your first two sentences seem fine and synonymous.
— Mister Micawber
I see no future perfect here.
Both of your first two sentences seem fine and synonymous.
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