1. 动词：

– 表示“声称”或“断言”，通常用于表达某人或某事物具有某种属性、或身份。

– 例句：The company claimed that their product was environmentally friendly.

– 例句：He claimed to be the rightful heir to the throne.

– 表示“请求”或“要求”，通常用于表达对某物或某事的主张或要求。

– 例句：She claimed her right to a fair trial.

– 例句：The workers claimed their pay raise.

– 表示“认领”，通常用于表达对某物或某人的所有权或认领权。

– 例句：He claimed his lost luggage at the airport.

– 例句：The are trying to find the person who claimed the abandoned baby.

2. 过去式和过去分词：

– 表示过去某个时间点或时间段内发生的行为或状态。

– 例句：He claimed that he had never been to that country.

– 例句：The government claimed that the economy was improving.

– 表示过去某个时间点或时间段内已经完成的行为或状态。

– 例句：The company claimed that they had met all the requirements.

– 例句：She claimed that she had finished her homework.

在英语中，动词的过去式和过去分词形式通常由原形动词变化而来。对于规则动词，过去式和过去分词形式通常在原形动词后加上“-ed”或“-d”。对于不规则动词，过去式和过去分词形式则各有不同。

“claimed”是一个多义词，其具体含义取决于上下文。在拼写时，应注意将“claimd”更正为“claimed”。