Поставте дані речення в запитальну і заперечну форму будь ласка his shoes are dirty . present simple he is cleaning his shoes . present continuos he has cleaned his shoes . present perfect

1) His shoes are not dirty ;
Are his shoes dirty ? ;

2) He isn't cleaning his shoes ;
Is he cleaning his shoes ? ;

3) He hasn't cleaned his shoes ;
Has he cleaned his shoes ?