Nguồn: Internet
Đối với các tính từ có hậu tố -ed, -ful, -ing, -ish, -ous biến đổi bằng cách thêm more cho dù chúng là tính từ dài hay ngắn (more useful, more boring, more cautious).
So sánh ngang bằng
Cấu trúc sử dụng là as .... as
My book is as interesting as yours.
His car runs as fast as a race car.
John sings as well as his sister.
Their house is as big as that one.
His job is not as difficult as mine.
They are...
