To be done与being done的区别

to be done是不定式的被动结构，表示要被作，而being done是指正在被做，二者表达的被动情况时间不同。比如The bike to be repaired belongs to his father。表示要被修理的自行车，(还没修)，而The bike being repaired belongs to his father。则表示正在被修理的自行车。