Question

3 Read the example sentence and complete the rule.
Some people had already escaped from the city on boats
when the Duke of York put a plan into action.
RULE: We use past perfect to talk about actions before
a certain time in the past or before another action in the
past.
had escaped
put
+
+
PAST
NOW
Form the past perfect with had (or 'd) + the
of the verb.​

Answer 1

Some people had already escaped from the city, using boats when the Duke of York had putten the plan into action.