英和和英

like when

when the time is right

when it comes to the point

that time

until when

at the precise moment

the very moment

when it's over

the exact time

on some occasions―in some cases―sometimes

at the proper time

at that moment

at that very moment

a precise moment in time

at exactly the same time

four o'clocks

at what time

right away

when I'm making that

When?

at an opportune time

at an opportune moment

Since then

at that instant

In that case, we shall take measures accordingly.

the correct time

on the instant

a certain period of time

the time when something happens

That depends （on circumstances）.