"This is the "house" that Jack "built" 

​

Has two stressed syllables and the rest of them are unstressed.  A frenchman will stress all syllables.  

​

The stressing and unstressing of syllables gives the language its "Englishness".  

​

In 10 syllable pentameter, will divide the line into two half-lines each containing two stresses.

​

To "be" or not to "be", "that" is the "question" --

​

This gives the poetry its Englishness...