10.38 emphasizing time

You can form many useful time expressions using a structure with 'it' followed by 'be' and a noun group referring to time. The use of this structure puts emphasis on the time of the event.

You can say when something happened using 'when'.

You can say how long ago something happened using 'since'.

You can say how long the interval was between one event and another using 'before'.

You can say how soon something will happen using 'to'.