Modal Verbs PDF - Fall 2021

San José State University Writing Center www.sjsu.edu/writingcenter Written by Michael Wong Modal Verbs Modal verbs (modals) are verbs that add the meaning of logical possibility, ability, necessity, and permission to verbs, which have a degree of strength...

San José State University Writing Center www.sjsu.edu/writingcenter Written by Michael Wong Modal Verbs Modal verbs (modals) are verbs that add the meaning of logical possibility, ability, necessity, and permission to verbs, which have a degree of strength from stronger to weaker. Modals come before infinitive verbs and the “to” is removed. Modals do not need to match their subject in plural agreement, so there is no need to add an “-s” or “-es” ending to a modal. Modals will often be seen in sentences that are predicting a future possibility, describing an ability, giving advice, making requests, or asking for permission. The nine most common modals are can, could, shall, should, will, would, may, might, and must. Common Modals Use Modals Examples Logical Must (Most Certain) The dark clouds must mean rain today. Possibility Will Due to the news, the stock will go down. Would The chemical would help the experiment. Should The case should prevent cracking. May This change may improve the results. Can Being careless can have bad consequences. Could The charm could protect you. Might (Least Certain) I might be tired tomorrow. Ability Can (Stronger Ability) He can type 34 words per minute. Could (Weaker Ability) I could assist by interpreting the results. Shall (Suggestion) Shall we dance? Necessity Must (Obligation) They must go to work today. Should (Advice) You should floss every day. Permission May (Most Formal) May I turn my paper in tomorrow? Might Might he have some more soup? Could Could I buy the new model? Can (Least Formal) Can I go to my friend’s house? (Note: This table does not include all types of modals.) Modal Verbs, Fall 2021. 1 of 4 Logical Possibility Logical possibility modals add a degree of possibility to an action. “Must” is the strongest modal that implies a possibility will occur while “could” and “might” imply that the speaker is unsure of the action happening. Examples: The weather report showed a 99% chance of rain, so it must rain. You might find an open store after 12:00 AM. In the first example, the modal is “must.” It is placed before the verb “rain” and indicates that the writer believes there is a strong possibility of rain. In the second example, the modal is “might.” It is placed before the verb “find” and indicates that the writer believes there is a low chance the reader will “find an open store after 12:00 AM.” Ability Ability modals add a degree to a subject's ability to do an action. Examples: Pigeons have a special ability; they can recognize themselves in mirrors. The editor could edit 70 pages in two days. In the first example, the modal is “can.” It is placed before the verb “recognize” and indicates that the writer knows that pigeons recognize themselves in mirrors. In the second example, the modal is “could.” It is placed before the verb “edit” and indicates that the writer knows to a weaker degree that the editor has the ability to edit “70 pages in two days.” Necessity Necessity modals add a degree of recommendation to an action. Examples: The kids must drink water every day. My students should do their homework every night. In the first example, the modal is “must.” It is placed before the verb “drink” and indicates a strong recommendation that kids drink water every day. In the second example, the modal is “should.” It is placed before the verb “do” and indicates a weaker recommendation that students do their homework every night. Permission Permission modals tend to be used in requests. The strength of the modal will determine how formal a request is by adding a degree of formality to a question. Examples: May I go to the restroom? Can you throw me the ball? Modal Verbs, Fall 2021. 2 of 4 In the first example, the modal is “may.” It is placed before the subject “I” because it is written in the question format (not as a statement as we’ve seen in previous examples). “May” indicates a strong formality and makes a request to use the restroom. In the second example, the modal is “can.” It is placed before the subject “you” and indicates a more casual request for you to throw the ball. Activity Part I Identify whether the sentence is describing logical possibility, ability, necessity, or permission. Some sentences can be identified as more than one or have multiple uses. 1. You might win the lottery, but the chances are low. 2. Alona can start a fire in five minutes. 3. Hyunh should get braces. 4. Can I move out next week? 5. Navya could run a mile in 11 minutes. 6. May I get my grade tonight? 7. It could rain tomorrow. 8. I can eat this cotton candy in three seconds. 9. Yang should catch his flight tomorrow if he arrives at the airport early. 10. They must complete their parts of the assignment, or we will fail. Part II Fill in the blank with a modal based on the use and degree of strength. 11. Logical Possibility, Most Certain The restaurant __________ have digital menus on the tables. 12. Logical Possibility, Least Certain The bus __________ be on time today. 13. Necessity, Advice Everyone __________ brush their teeth every day. 14. Permission, Most formal __________ Inessa and I go to the nurse’s office? 15. Ability, Stronger We __________ write so quickly. Modal Verbs, Fall 2021. 3 of 4  16. Permission, Somewhat formal Darius, __________ I have another cookie after dinner? 17. Ability, Stronger or Somewhat Certain I __________ finish my finish my writing test in one hour. 18. Logical Possibility, Less Certain It __________ snow in Texas if the weather keeps changing. 19. Necessity, Obligation You __________ not text while you drive! 20. Logical Possibility, Somewhat Certain The kids __________ have cleaned the house before we get home. Answer Key for Activity 1. Logical possibility 2. Ability 3. Necessity 4. Permission 5. Logical possibility/ability 6. Permission 7. Logical possibility 8. Ability 9. Logical possibility 10. Necessity and possibility 11. Must/Will 12. Can/Could/Might 13. Should 14. May 15. Can 16. Could 17. Could 18. Can/Could/Might 19. Must 20. Should/May References Larsen-Freeman, D., Celce-Murcia, M., Frodesen, J., White, B., & Williams, H. A. (2016). The Grammar Book: Form, Meaning, and Use for English Language Teachers. Modal Verbs, Fall 2021. 4 of 4