1 When crossing your legs when sitting down, make sure.... 2 When crossing your legs while sitting down, make sure.... 3 When lying on your back when/while sleeping, be sure to....
Thank you
Top answer
You can -- grammatically. But it may be a little awkward stylistically. It depends on the sentence.
— CalifJim
You can -- grammatically.
But it may be a little awkward stylistically.
It depends on the sentence.
Your examples don't seem particularly objectionable.
CJ
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