"被认为"的英语表达方式有以下几种：

be considered （to be）

例句：Dogs are considered （to be） our friends.（狗被认为是我们的朋友。）

be deemed to be

例句：The essay is deemed to be by far the best one submitted.（这篇文章被认为是迄今为止提交的最佳文章。）

be thought to be

例句：He is thought to be a great leader.（人们认为他是一位伟大的领导者。）

be looked upon （or upon） as

例句：She is looked upon as a role model.（她被视为一个榜样。）

be supposed to be

例句：You are supposed to finish your homework.（你应该完成你的作业。）

pass for

例句：He passes for a good musician.（他被认为是一个好音乐家。）

go for

例句：She went for a walk in the park.（她去公园散步了。）

be known as

例句：The building is known as the "Tallest Building in the World."（这座建筑被称为"世界上最高的建筑"。）

be referred to as

例句：He is referred to as the "Father of the Nation."（他被称为"国家的父亲"。）

be regarded as

例句：He is regarded as a pioneer in the field.（他被视为该领域的先驱。）

这些表达方式可以根据具体的语境和需要选择合适的来使用。