за ним и за изменениям в его поведе

за ним и за изменениям в его поведении постоянно наблюдал врач и двое его друзей

Результаты (английский) 1:

for him and for changes in his behavior are constantly watched by a doctor and two friends

Результаты (английский) 2:

for him and for the changes in his behavior constantly watched the doctor and his two friends

Результаты (английский) 3:

for him and for changes in his behavior, constantly watching doctor and his two friends