CCQ2: Is the action finished?
CCQ3: Do you know when it happened?
Past Continuous Tense
I was fishing at 10 o’clock.
CCQ1: Did I start fishing before 10 o’clock?
CCQ2: Was I still fishing after 10 o’clock?
CCQ3: Was this action in progress at 10 o’clock?
Past Perfect Tense
I had fallen asleep before you arrived.
CCQ1: Are we talking about the past?
CCQ2: How many actions are there in the past?
CCQ3: Did both actions happen at the same time? Which happened first?
Past Perfect Continuous Tense
They had been having a party for 3 hours when their mother came.
CCQ1: Was their mother with them when the party started?
CCQ2: How long were they having a party?
Future Simple Tense
There’s no coffee, so I’ll have some tea.
CCQ1: Is this a plan or a spontaneous decision?
CCQ2: Are you having tea now or you want to have it in the future?
Future Continuous Tense
I’ll be having a meeting at 10am.
CCQ1: Does the meeting start before 10am?
CCQ2: Is it in progress at 10am?
Future Perfect Tense
I’ll have finished the meeting by 11:30am.
CCQ1: Imagine it’s 11:30am. Is the meeting over?
CCQ2: Do you know the exact time when the meeting ended?
Future Perfect Continuous Tense
She’ll have been studying here for 2 years by the end of August.
CCQ1: Is she studying here now?