Analyze the following sentences below:
I. “What will you have been doing?” is in the simple
future and future perfect tense.
II. “I was studying English when you called
yesteday” is in the past continuous.
III. “She wrote last night” is in simple past.
IV. “Have they ever been abroad?” is in the past
perfect.
V. “What are you doing now?” is in the present
continuous.
Which ones are correct?