SHOULD / OUGHT TO

  1. A claim should be well organized with information in a logical order.
  2. As Britain's top company doctor he is brought in to rescue failing firms.
  3. Changes Brought by the War
  4. Ex.5. Thought and discussion questions.
  5. How should this medicine be used?
  6. I. Should
  7. Kohlberg L, (1963) The development of children's orientations toward a moral order: Sequence in the development of moral thought. Vita Humana, 6, 11-33.
meaning use present past
1. advice (giving / asking for) + /? / - Should these commands be carried out? -
2. obligation + / - The files ought to be fully defined. The PC should not have been used inappropriately.
3. possibility + You should see the message on the screen. They should have carried out the calculations.
4. complaint + / - You should be using another application for this purpose. These devices should have been handled with great care.

Note:

Should / Ought tohave no other forms. To express past perfect infinitive can be used sometimes.

4. , 䳺should / ought to :

1. It determines which operations should be carried out and in what order. 2. They ought to have tested new applications. 3. Make sure your last command is finished. You should see the prompt on the screen. 4. The batteries should not be kept uncharged. 5. What kind of data ought to be typed?

NEED

meaning use present past
1. necessity + To do this, you need to understand how the data bus width affects performance. He needed to back up that file regulary.
2. no obligation - You do not need to use virus scanning every time. You did not need to back up these files.

Notes:

1. Needcan be used in different forms with and without "to" after it.

2. Need notand do not need toare different.

- We generally use need notwhen the authority comes from the speaker and do not need towhen the authority does not come from the speaker.

- To talk about the past, we use need notand Perfect Infinitive (means: you did but it was not necessary) or did not need to.

5. , 䳺need :

1. Most memory chips are now mounted on boards, you need not have checked for other ports. 2. Nonvolatile media are needed to store programs and data when the power is off. 3. The smaller size reduced the distance electrical signals needed to travel. 4. The fields need not be contiguous in memory, nor do they need to be part of a structure. 5. You can insert the executable code you need to "clean up" at an embed point.



MAY - to be allowed (permitted) to do smth. | HAVE TO

| | | | II. | III. | II. | CAN - be able to do smth. / Be capable of doing smth. | WILL / WOULD | Design for Decision |

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