An attempt to express what is beyond the range of his spiritual life and experience, at once betrays his deficiency.
This and that are frequently put in opposition to each other; this, to express what is nearer in place or time; that, what is more remote.
The Periphrasis, or Circumlocution, is when several words are employed to express what might be expressed in fewer.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "express what" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.