FORM/USE: 'IF' + 'SHOULD', FORMAL, POLITE
EGP #1122 | C1 | CLAUSES / conditional Can form subordinate conditional clauses with 'if you should', in polite, formal contexts. Lexical range: N/A
如果你改变主意了，随时告诉我。
If you ___should change your mind, just let me know.
如果你遇到任何问题，随时联系我。
If you ___should encounter any problems, feel free to contact me.
如果你迷路了，记得给我打电话。
If you ___should get lost, remember to call me.
如果你碰巧遇到她，请帮我问个好。
If you ___should meet her, please say hello for me.
如需取消预订，请至少提前四十八小时通知。
If you ___should wish to cancel your reservation, please notify us at least forty-eight hours in advance.