Question

1. You have to structure your time effectively.

2. You have to construct your time effectively.

3. Yoiu have to organize yoiur time effectively.
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Are they the same in meaning? Are they all grammatical? Which verb do we have to use?

Answer 1

All seem to mean the same thing, yes. I'd use 1 and 3, but not 2. Sentence 3 is best.