Сколько различных слов можно получить переставляя буквы в слове demonstration

у глаголов в прошедшем времени окончания ed

linda will arange the students exchange, will not she ? your parents were not at the cinema yesterday, were they? denis can play the guitar, can' t he? we are not going to write her a letter, are we? you have a lot of friends, have not you? some members of his football team gave an interview to youth magazine, did they?