Study carefully the following sentences. Write in the blank space preceding each sentence the number of the paragraph in the lesson which governs the use of the helping verb must or ought in that sentence.
- ...... Service must be the key note of the future.
- ...... Competition must give place to co-operation.
- ...... Ought we to fear, who know the truth?
- ...... Government ought to be the administration of things.
- ...... No man ought to have the power of life and death over any other human being.
- ...... It may cost much but humanity must be set free at any cost.
- ...... What ought to be the attitude of the workers toward war?
- ...... "For man must work and woman must weep,
- For there is little to do and many to keep."
- ...... The day must come when we can live the dream.
DO AND DID
181. Do and did are used as helping verbs to give emphasis—to form emphatic verb phrases. Do is the present time form and did the past time form, as for example:
- I do wish you would come.
- I did hope he would win.
182. When we use the negative not we use the helping verbs do and did to form our verb phrases. For example, we do not say:
- I obey not.
- I walked not.
- He comes not.
- They arrived not.
But in expressing the present and past time forms with the negative not, we say instead:
- I do not obey.
- I did not walk.
- He does not come.
- They did not arrive.
183. We also use do and did with the present and past time forms of the verb in writing interrogative sentences. For example, we do not say: