AN INTRODUCTION TO MODALS Modals express ability, permission, obligation, prohibition, supposition and so on. They (can, could, may, might, will, would, shall, should, must, ought to, used to, need, dare ) take bare infinitives along with them in sentence construction. Each modal has many different shades of meaning according to the sentence. It is determined by context. They never conjugate. Using models to express our thoughts in the language is easy, convenient and readable. It reveals the tone of the sentence. Without modals also we can express our thoughts. Look at these two sentences. You can do this. ( with a modal verb can ) You are capable to do this. ( without modal ) Though these are similar in meaning the first one is clear and straightforward along with the tone. Ahead, we are going to see the usage of all the modals in English grammar. WILL Habitual actions in the future: During the monsoon, green grass will grow here and there. Intentions, decisions and promises