I wonder if starting a sentence with “suppose” is considered impolite in English, please.
I had a tendency of starting a sentence with “please” but I've already learned in this forum that, in English, I’d rather end the sentence with “please” or put it in the middle (of the sentence).
So, instead of saying “Please, suppose that…” I have been saying “Suppose that…, please.”.
It sounds a little bit blunt to me and I wonder how to say it politely.
Thanks a lot.
Instead of "Please", try "Excuse me, supposing that you were to pay for the tickets now and we repay you later, we could book early".
Or just leave out "please", which in this context is not required.