| No | Line | Type of error | Text | Correction |
| 1 | 380 | Auxilliary | w provides us with rules that not necessarily have to be not necessarily have to be | are not necessarily |
| 2 | 314 | Auxilliary | ould inform people what steps are taken by the government to prevent the spread of | are to be |
| 3 | 55 | Auxilliary | we are not sure whether they can be reliable or not. Therefore, we are not o | are |
| 4 | 772 | Auxilliary | lm children which can be considered bad-tempered. But, instead of reproach | are |
| 5 | 798 | Verb number error | the data on alcohol drinking is to your benefit . You | are |
| 6 | 695 | Tense | ury when the tobacco industry has become a very profitable business. Members of the govern | became |
| 7 | 6 | Wrong verb form | they felt that marriage would brought them some substitute of | bring |
| 8 | 348 | Auxilliary | he beginning, the real answer could be obtained only on the basis of the information | can |
| 9 | 695 | Tense | f of smoke./^t/This situation has changed in the beginning of the 20th century wh | changed |
| 10 | 699 | Tense | ovement in L.A., the campaign has changed . The model of a rebel young m | changed |
| 11 | 721 | Verb number error | produce, 50 per cent of which consist consist from the most valuab | consists |
| 12 | 436 | Passive-active voice | h broadcasts evoke , is cumulated 0 sooner or later, has to be released. T | cumulates |
| 13 | 281 | Tense | illegal 0 but does not harm others. Jimy Hendrix died from | did |
| 14 | 465 | Auxilliary | g wide rodents. How it happens 0 then, that it can How it happens t | does it happen |
| 15 | 824 | Tense | s are on the decline, reading becomes unpopular, deep thought | has become |
| 16 | 27 | Tense | 0 proving that such a person had been tested and inoculated against the disease. Such a | has been |
| 17 | 570 | Tense | iolence. Unlike sex, violence is not curbed at all, and 0 a subject | has not been |
| 18 | 445 | Tense | However, the image of parents stayed stayed the same - father and | has remained |
| 19 | 809 | Auxilliary | hundred students of each year must be a school teacher and at the same time an exper | has to |
| 20 | 445 | Tense | of that , some countries allowed homosexuals to marry and adopt children and thus | have allowed |
| 21 | 26 | Tense | e the epidemic is supposed to appear or where it was actually detected. In such 0 | have appeared |
| 22 | 44 | Tense | have realised they were lied . Taking into consideration | have been |
| 23 | 487 | Tense | ed us to conquer and inhabit allows for conquering and inhabiting all areas of the world as well as catering f | have helped us to conquer and inhabit |
| 24 | 242 | Tense | ey had at the beginning. They lost the illusion of freedom they had later. Now they | have lost |
| 25 | 491 | Tense | ' - those who survived the clinical death. Consequently, the | have survived |
| 26 | 499 | Passive-active voice | heir constitutional rights to getting married between gays rights to getting married between gays and | homosexual marriage |
| 27 | 454 | Tense | to adopt children. The issue is now discussed in several countries. However, there are several | is now being discussed |
| 28 | 66 | Tense | doctor treats a patient that suffers from an incurable disease, for example. Then, the | is suffering |
| 29 | 127 | Tense | ible to know whether a person tells the truth or a lie creates a constant sense of di | is telling |
| 30 | 480 | Tense | no longer a generation which was shown the patterns to follow. Now their heroes ar | is |
| 31 | 176 | Verb number error | antipathy towards gay people are still very strong. The child adopted by gays | is |
| 32 | 231 | Verb number error | of crimes committed in Poland are the changes of the country's | is |
| 33 | 773 | Auxilliary | active children are varied , and perhaps only | may be |
| 34 | 108 | Auxilliary | y. Among them can also be people with weak personalities 0 | may |
| 35 | 467 | Auxilliary | gger. the biologists can feel delighted to discover | may |
| 36 | 178 | Auxilliary | different from other children shall hurt the adopted child. After all, when we are sm | may |
| 37 | 347 | Finite vs non-finite uses | or pleasure or relax , it may be even a matter of life and de | relaxing |
| 38 | 662 | Passive-active voice | nd hear nothing. Therefore it was rightly used to be said that the person was g | rightly used |
| 39 | 401 | Auxilliary | flights, trains, and coaches ought to be ceased . In fact, this is not a | should |
| 40 | 480 | Passive-active voice | r and control./^t/The fact of opening the borders , and all the same | the borders being open |
| 41 | 524 | Finite vs non-finite uses | an efficient way of avoiding the country to be infected . In fact, there is a possibility | the country being infected |
| 42 | 335 | Verb number error | Every action that the parents undertakes should be followed by 0 explanation, wh | undertake |
| 43 | 117 | Auxilliary | severely prosecuted as there should not be any classes in the socialist | was not supposed to be |
| 44 | 281 | Verb number error | things that accompanied them was their music and a marijuana joint. Music, beginni | were |
| 45 | 467 | Auxilliary | tic drugs which are to protect us from various diseases. However, this i | will |
| 46 | 522 | Auxilliary | he diseased country, as there is a risk of bringing infected ro | would be |
| 47 | 455 | Auxilliary | ly with married parents. They could not profit from social protection | would not be able to |
| 48 | 456 | Auxilliary | stupid names. This results in depriving these children of the basic | would result |
| 49 | 455 | Auxilliary | l welfare , for example they could not receive a child benefit | would |
| 50 | 279 | Auxilliary | endable and will be able to release their country from | would |