when

They knew when to attack and when to retreat.

The where and when are not known.

the afternoon when the disturbance happened.

the crunch of bone when it is sundered.

a fish that will mud when attacked

when next I write.

He was unhappy when alone.

When to meet senesce?

Do it when nobody is by.

in wartime, when life was cheap.

at the time when we met

It is not certain when it will take place.

When will the work be complete?

Relax when you dance.

When will they name a successor?

When will the sow farrow?

When there is solar halo,it will rain;when there is lunar halo,it will blow.

When is the next sailing to Ostend?