How to use 'MUST' in sentences as an Auxiliary Verb?

-
In the series of learning medical transcription course, we dealt about 'WOULD' usage in the prior lesson. Now we will study about the use of MUST as an auxiliary verb in English grammar.  Uses of  ‘must’: 1. Must is used as an auxiliary to show duty or obligation (Here ‘must’ is stronger than ‘should’) 2. Must is used in future in the past tense. Let us come to know certain rules which is used in the tense of auxiliary form of the verb. A. In the simple present tense form the auxiliary ‘must’ is used in the present form of the verb. B. In the present continuous tense form the auxiliary ‘mustbe’ is used in the present form ending with –ING. C. In the future in the past tense the auxiliary ‘must have’ is used in the past participle form. D. In the future in the past continuous tense ‘must have been’ is used in the present form ending in –ing.

Whenever the structure of the sentence expresses duty or obligation, the structures is shown as below examples: 1. We must obey the office rules and regulations faithfully. (This is in the simple present tense) 2. We must not work against the interests of others. (This is in simple present tense) 3. Must we visit all the schools in this town everyday? (This is in simple present tense) 4. We must not be waiting for too long. (This is in the present continuous tense) 5. You must speak to the prinicipal today itself, mustn’t you? (This is in simple present tense).

 Note: The short form of ‘must not’ is mustn’t. Here the silent letter is first t, so we pronounce the word as musn’t

Whenever the structure of the sentence is in the form of ‘future in the past’ then the examples are shown below: 1. Elizabeth must have set a record by now in modeling.
2. All teachers mustn’t have gone for meeting today. Some must have stayed behind.
3. The doctor have been examining the patient when you called at my clinic. (This is in the future in the past continuous tense) 4. All the members in our family must have returned from vacation by today.

In the next post  we would learn about a new topic of auxiliary verb 'OUGHT TO' in the sentences.

Comments

Post a Comment

Popular posts from this blog

IMPORTANT RADIOLOGY NUCLEAR MEDICINE TERMS-3-LESSON 148

-
1. Magnetic resonance imaging- A magnetic ground radio signals are used to outline sagittal, coronal, and axial pictures of the body. 2. Megavoltage- High-energy radiation engendered by means of an equipment and employed in restorative x-ray analysis intended for cancer. 3. Nuclear medicine- This is a medical speciality, which examines and employs of radioactive materials called radionuclides within identification and treatment of ailment. 4. Orthovoltage- Emission of low-energy radioactive waves that are employed in pain-killing radiation therapy and exterior skin cancer diseases. 5. Palliative- Means just soothing or painkilling, not curing completely that is not possible. 6. PET scan or positron emission tomography- Radioactive materials are administered using intravenous route and these substances give out positrons. They generate a cross-sectional picture of the metabolism of the body. These images symbolize local concentration of the radio
Read more

HUMAN BONE STRUCTURE - LESSON 200

-
Now in this post we will learn about the structure of the bone. In our human body there are 206 bones of different types are there. The thigh, lower leg, and upper and lower arm consists of long bones. These bones have large surface areas for muscle attachment and are very strong, are broad at the ends where they join with other bones. There are five types of bones in the human body. The five types are long, short, flat, irregular, and sesamoid. 1. Long bones:- These bones are comprised mostly of compact bone and lower amounts marrow, which is located within the medullary cavity, and spongy bone and are characterized by a shaft, the diaphysis, that is much larger in length than breadth. These bones are mostly present in the limbs, including those of the fingers and toes are long bones. Except the wrist, ankle, and kneecap these long bones are located in most. 2. Short bones:- These short bones are generally cube shaped and having a thin layer of compact bone surrounding a
Read more

The Longest Medical Word

-
Image
Today, we will know about an interesting medical term in medical language. This post is just to know about a different thing in the medical language, though this word is used very rarely in our day-to-day medical transcription work. The longest medical word is "Pneumonoultramicroscopicsilicovolcanoconiosis"!!!!!. Can you read at least Pneumonoultramicroscopicsilicovolcanoconiosis.  Now, we will see the meaning of this word.  To know the meaning shall we split the word by word. Okay.  1.  Pneumono 2.  Ultramicrosopic 3.  Silico 4.  Volcano 5.  Conosis. So, Pneumonoultramicroscopicsilicovolcanoconiosis comprises of 5 medical words and in combination, they give a meaning of a certain kind of disease condition related to lungs.  Now, we will see the meaning of each to get the combined understanding of the longest medical word. Pneumono means lungs, ultramicroscopic - means minute, silico means silicon, volcano means eruption, and conosis means abnorm
Read more