I know a memoir can be non-fiction can a drama and a poem be non fiction too?

Yes, drama (plays) and poems can be either fiction or non-fiction.

A memoir, by definition, is non-fiction. It is a person's memory of an event or events in one's life. A play or a poem may also be based on someone's memories, but is usually considered what it is, a drama (play or screenplay) or a poem - separate categories. Dialogue in a drama is usually invented (unless it is a transcript of actual court records or a tape-recorded conversation, etc.). The author may be trying to make it "true", but usually has to imagine the words spoken.

While memoirs are a specific form of non-fiction that depict personal experiences and memories, both dramas and poems can also be considered non-fiction. However, it largely depends on the content and the intent of the author.

In the case of dramas, they typically present fictional stories and characters on stage or screen. However, there are instances where dramas can be based on real events or real people, presenting a non-fictional portrayal of historical or biographical events. For example, a historical play that accurately depicts a specific period or event would be considered non-fictional.

Poems, on the other hand, are a highly creative form of expression that often delve into emotions, thoughts, and personal experiences. While many poems are fictional or abstract, there are poets who write confessional or autobiographical poetry, in which they explore real-life events or personal experiences. These poems can be considered non-fictional as they express the actual thoughts, feelings, and observations of the poet.

To determine if a drama or poem is non-fiction, it's crucial to consider the author's intention, the subject matter, and the extent to which it accurately represents reality. Reading the author's background, understanding the context of the work, and analyzing the content are essential steps in determining whether a drama or poem is non-fiction.