Common Phrases and Expressions

Front

to do something different than usual

Back

for a change

Front

only if certain requirements are met

Back

on condition

Front

before a particular time or event

Back

in advance

Front

simultaneously

Back

at the same time

Front

as a precaution

Back

in case

Front

with a quick look

Back

at a glance

Front

accidentally

Back

by mistake

Front

during a period of selling goods at reduced prices

Back

in the sales

Front

not possible or allowed

Back

out of the question

Front

no longer current or valid

Back

out of date