please give me / (expressing a request) please do something for me

Please do (action)

Please do not (do)

front and behind / right before and after / consequences

before and after; around; throughout / both sides; opposite sides / front and rear; front and back; fore and aft

to invert the order

please give me / (polite, imperative) please do something for me; expressing a request

the sky

something empty / ineffectual / false

by heart, from memory, by rote