| am | |
| is | + Participle I |
| are |
56. Present Continuous :
The student is filling the
flask with some solution. - .
As 1
Were
J
+ Participle I
57. Past Continuous
:
They were analysing the results of their research from 4 to 6 o'clock yesterday.
One student was carrying out the experiment while the other was putting down all the details.
4 6 . The Past Continuous Tense
, .
The Future Continuous Tense
Shall will
+ be + Participle I
Future Continuous
: At 8 o'clock tomorrow we 'll be preparing for a very important experiment.
8 .
58. Continuous to be Present Past Continuous + Participle II , (. . . 106).
During the experiment the
air in the laboratory was being purified by two ventilators. .
Future Continuous Passive .
PERFECT (ACTIVE PASSIVE)
to have + Participle il
59. Perfect Tenses , , .
Perfect Tenses to have , Participle II ( ) .
Perfect , not .
, .
Perfect , - to have. Participle II :
A group of Moscow researchers
has developed new equip- ment for TV communication via outer space. .
The scientist had completed his research by the beginning , of the conference.
The Present Perfect Tense
V + Participle II has J
60. Present Perfect :
1) , :
|
|
|
We have finished our experiment. Mbi .
2) , , : this week , this month , this year , today . .:
3) ( 129): Were she in the city, she would ,
come to the meeting. .
4) never , hardly , in no case , little .:
Never have we worked
with such devices before. .
5) Present Past Indefinite, do (does, did):
Little did we hear about
this event before. .
BE
131. to be Indefinite.
| Present | Past | Future | |
| I am you are he (she, it) is | I (he, she, it) was | I shall/will be you (he, she, it) will be | |
| we (you, they) are | we (you, they) were | we shall/will be you (they) will be |
