How can we know when we use present participle and past participle?

Use Present Participle with Progressive/Continuous Tense forms:

I am writing…

I have been writing…

I had been writing…

Use Past Participle with Present Perfect and Past Perfect Tenses:

I have written…

I had written...

You will say...

I have had been written (example) a letter for my mother, when suddenly had to stop because I noticed I was running out of time to leave home for work.

Maria:

What tense is this verb form? : have had been written