is used to doing 现在/一直习惯于做.
was used to doing 过去曾经习惯于做.
is used to do 现在/一直被用来做
was used to do 过去曾经被用来做
也会有have been used to 之类的出现
is used to doing 现在/一直习惯于做.
was used to doing 过去曾经习惯于做.
is used to do 现在/一直被用来做
was used to do 过去曾经被用来做
也会有have been used to 之类的出现