我不记得见过他。

I didn't ___recollect having seen him.

我只能回忆起一个我特别不喜欢的家庭聚会。

I am able to ___recollect only one single family gathering I did not especially take to.

她试图回忆对话的细节，但很模糊。

She tried to ___recollect the details of the conversation, but they were hazy.