Question

Within this passage of The Declaration of Independence I have to explain how Jefferson uses, repeats and refines the meanings of necessary, suffer, and
related words to support his argument.

When, in the course of human events, it becomes necessary for one people to dissolve the political bonds which have connected them with another, … a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation.

…mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same object evinces a design to reduce them under absolute despotism, it is their right, it is their duty, to throw off such government…—Such has been the patient sufferance of these colonies; and such is now the necessity which constrains them to alter their former systems of government.

I'm having a really hard time with it, can someone give me some ideas about how to do this?