The Difference Between Must, Have to, Shall, Need and May - Wall Street English

In English there are various ways to describe rules and obligations. Here is a description of how to express obligation and how and when to use modal verbs.

Arguments for and Against Suffrage - Women & the American Story

Watch We Shall Remain, American Experience, Official Site

The Wager: A Tale of Shipwreck, Mutiny and Murder

MODALS Sutori

Warning by Jenny Joseph - Scottish Poetry Library

Should You “Be Patient” or “Have Patience”?

James Baldwin's Day of Mourning - Boston Review

Semi-modals in the English Grammar

The Chicago Guide to Grammar, Usage, and Punctuation, Garner

We showed it was possible to create a movement from almost nothing