一般现在时 ：the play is very interestin
现在进行时：the play is very interestin.
将来是 ：the play will be very interstin.
你这个例子举的不是很好,最好举个有动词的 过去式：he watched TV yesterday.
一般现在：he watches TV.
进行时：he is watching TV.
将来是：he will watch TV.