Образуйте сравнительную и превосходную форму данных прилагательных: fantastic, far, amusing, practical, useful, picturesque, heavy ​

more fantastic, the most fantastic;

further, the furthest;

more amusing, the most amusing

more practical, the most practical;

more useful, the most useful;

more picturesque, the most picturesque;

heavier, the heaviest.