Put there sentences into past and future indefinite : nicotine is a one of strongest vegetable poisons . smolers more frequent are ill on the on the lung fever, tuberculosis and other diseases . physical and psychological dependenke on nicotine develops far quickly far quickly , than from an alcohol .

Past Simple
Nicotine was a one of the strongest vegetable poisons .
Smokers more frequent were ill on the on the lung fever, tuberculosis and other diseases .
Physical and psychological dependence on nicotine developed far quickly than from an alcohol.

Future Simple
Nicotine will be a one of the strongest vegetable poisons .
Smokers more frequent will be ill on the on the lung fever,tuberculosis and other diseases .
Physical and psychological dependence on nicotine will develop far quickly than from an alcohol .