将来进行时是由“shall/will + be + 现 在分词"构成的。
Don't phone me between 8:00 and 10:00. We'll be having classes then. 8点到10点之间不要给我打电话,我们那时正在上课。
Will you be using your bicycle this evening? 今晚你用自行车吗?
She won't be having a meeting in her office at 8:00 tomorrow. 明天 8点她不在办公室开会。