Present perfect continuous презентация

of Foreign Languages

Karaganda 2016

including emergency dental care. Services include teeth cleanings, teeth whitening, x-rays, root canals, crowns, fillings and orthodontics. Multiple types of dental practices exist, each of which caters to a different type of community, including the privately insured, the publicly insured and the uninsured.

in private practice. Specifically, it is estimated as many as three out of four dentists are solo practitioners. Private practitioners work as licensed, self-employed dentists. Because of the relatively small size of the organization, patients usually get more personalized care from private practitioners.Because there is no administrative structure, solo practitioners must oversee administrative tasks for the practice, including bookkeeping and procurement. A hospital dental clinic operates as a division of a hospital group. Its dentists work directly for the hospital. These dental clinics usually are on hospital grounds or in annexed buildings near the hospital.

general health care services. These types of clinics serve a particular community or population and combine the efforts of hospitals, the government and the health care industry to provide its community members with adequate health care services. Often, such health centers receive federal funding to subsidize care for the poor and uninsured.Unlike private practices in which one dentist operates a clinic by himself, a group practice is an association of dental professionals. These professionals work together, sharing space and using the same equipment. Although care might be less personal than private practice, the presence of more dentists allows the practice to treat more patients and pool resources to buy more equipment and hire more staff.

elements: the present perfect of the verb 'to be' (have/has been), and the present participle of the main verb (base+ing)

+ Time reference • Subject + has been/have been + (1st form of verb or base verb + ing) + object + time reference If the subject is “He, She, It, singular or proper name” then auxiliary verb “has been” is used after subject in sentence. If subject is “You, They or plural” then auxiliary verb “have been” is used after subject in sentence.  
Negative Sentence. • Subject +”Not” between the Auxiliary verb + main verb (present participle) + Object + Time reference • Subject + has not been/have not been + (1st form of verb or base verb + ing) + object + time reference To make negative sentence, the word “not” is written between the auxiliary verbs, so it becomes like “has not been or have not been”. The rule for using auxiliary verb “has been or have been” in negative sentences is as same as mentioned above.  
Interrogative Sentence. • Auxiliary verb + Subject + Auxiliary verb + main verb (present participle) + object + time reference • Has/have + Subject + been + (1st form of verb or base verb+ing) + object + time reference.Interrogative sentence starts with auxiliary verb. If the subject is “He, She, It, singular or proper name” then the sentence starts with auxiliary verb “has” and auxiliary verb“been” is used after subject If subject is “You, They or plural” then the sentence starts with auxiliary verb “have” and “been” is used after subject

an unspecified time between 'before
now' and 'now'. The speaker is thinking about something that started but
perhaps did not finish in that period of time. He/she is interested in
the process as well as the result, and this process may still be going on, or
may have just finished.
ACTIONS THAT STARTED IN THE PAST AND CONTINUE IN THE PRESENT
She has been waiting for a dentist all day (= and she's still waiting now).
I've been working with this patient since eight o'clock this morning (= and I still haven't finished it).
They have been travelling since last October (= and they're not home yet).
ACTIONS THAT HAVE JUST FINISHED, BUT WE ARE INTERESTED IN THE RESULTS
She has been cooking since last night (= and the food on the table looks delicious).
It's been raining (= and the streets are still wet).
Someone's been eating my chips (= half of them have gone).

form, use the simple present perfect.
For example:
 I've wanted to visit China for years. She's known Robert since she was a child. I've hated that music since I first heard it. I've heard a lot about you recently. We've understood everything. we've heard this morning.

.

- She has not been waiting for a dentist all day.

? Has she been waiting for a dentist all day?