usually的同义词是often。
often的例句：
1.This pond often catches in winter.这个池塘在冬天常常结冰。
2.They often ribbed her for her accent.他们常常拿她口音开玩笑。
3.They often bargain away in the shops for hours.他们在商店里常常讨价还价几个小时。
4.They often remember the pleasant days they had with you.他们时常想起与你共度的愉快的时光。
usually的同义词是often。
often的例句：
1.This pond often catches in winter.;这个池塘在冬天常常结冰。
2.They often ribbed her for her accent.;他们常常拿她口音开玩笑。
3.They often bargain away in the shops for hours.;他们在商店里常常讨价还价几个小时。
4.They often remember the pleasant days they had with you.;他们时常想起与你共度的愉快的时光。
us的主格是we，主格是指名词的语法的格，主格通常表示主格在拉丁语和古英语中都有，现在的英语中仍然存在于与宾格相反的主格代名词。
主格，宾格作句子的宾语或表语，物主代词分为形容词性物主代词和名词性物主代词，形容词性物主代词起形容词的作用，在句中作定语，名词性物主代词起名词的作用，在句中作主语或宾语。