CHANGE POSITIVE SENTENCE OF PAST TENSE INTO NEGATIVE AND INTROGATIVE SENTENCE

1. (+) Corona Virus  or  COVID-19 is a collection of viruses that can infect the respiratory system.
(-) Corona Virus  or  COVID-19 isn’t a collection of viruses that can infect the respiratory system.
(?) Is Corona Virus  or  COVID-19 a collection of viruses that can infect the respiratory system?
2. (+)The alleged ‘cause of the Corona Virus is from animals that are exchanged for humans.
(-)The alleged ‘cause of the Corona Virus isn’t from animals that are exchanged for humans.
(?)Is the alleged ‘cause of the Corona Virus  from animals that are exchanged for humans?
3. (+)For the exchange is still being researched until now.
(-)For the exchange isn’t still being researched until now.
(?)Is for the exchange still being researched until now?
4. (+)Symtoms of this virus  generally have a high fever of more than 38C, coughing, and shorthness of breath.
(-)Symtoms of this virus  generally haven’t a high fever of more than 38C, coughing, and shorthness of breath.
(?)Have symtoms of this virus  generally a high fever of more than 38C, coughing, and shorthness of breath?
5. (+)The impact of this virus  on patient health is huge.
(-)The impact of this virus  on patient health isn’t huge.
(?)Is the impact of this virus  on patient health huge?
6. (+)In addition, patients who were declared cured of COVID-19 was necessarily recover 100%.
(-) In addition, patients who were declared cured of COVID-19 didn’t necessarily recover 100%.
(?)Did patients who were declared cured of COVID-19 necessarily recover 100%?
7. (+)According to patient data in HongKong 12% patients were cured, 3-4 people experienced substantially weakened lung capacity, with some people breathing heavily during brisk walking.
(-) According to patient data in HongKong 12% patients didn’t cure, 3-4 people experienced substantially weakened lung capacity, with some people breathing heavily during brisk walking.
(?) Did according to patient data in HongKong 12% patients cured, 3-4 people experienced substantially weakened lung capacity, with some people breathing heavily during brisk walking?
8. (+)There are also several ways to prevent COVID-19 from being spread.
(-)There aren’t also several ways to prevent COVID-19 from being spread.
(?) Are there also several ways to prevent COVID-19 from being spread?
9. (+)Because the vaccine used in China is only passive antibody and a temporary period.
(-)Because the vaccine used in China isn’t only passive antibody and a temporary period.
(?) Is because the vaccine used in China only passive antibody and a temporary period?
10. (+)Inconclussion, the vaccine is still being researched and temporarilly uses an antibody-boosting vaccine that comes for the blood of patients who have already being infected.
(-)Inconclussion, the vaccine isn’t still being researched and temporarilly uses an antibody-boosting vaccine that comes for the blood of patients who have already being infected.
(?)Is the vaccine still being researched and temporarilly uses an antibody-boosting vaccine that comes for the blood of patients who have already being infected?