一般进行时的构成：1.be动词型：2.情态动词型：3.实意动词型：现在进行时的构成：关键词：一般进行时：例：often、

He is a student.
He could be a student.他能成为一名学生
He plays the game.
He is playing the game.
He is often late for class.
He is late for class everyday.
He is always late for class.
He is playing the game now.
He is playing the game today.

没有一般进行时这么一说，应该是一般现在时，例如always, usually,regularly,every morning/night/evening/day/week,often,sometimes,occasionally,from time to time,twice a week,rarely,seldom,once a month, hardly, ever,never.
现在进行时：你看看http://baike.baidu.com/view/201163.htm吧