Continuous: be plus -ing
Use a form of be with a present participle to present an action as in progress: 'Noor is writing' or 'Noor was writing'. The helper verb carries tense and agreement. In an ordinary complete sentence, 'Noor writing a note' needs a helper such as is or was.
Perfect: have plus a past participle
Use have, has, or had with a past participle to look back from a reference time. 'Noor has written the note' presents the completed note as relevant now. 'Noor had written the note before the call' places the writing before another past event. Written stays the same; the helper changes.
Passive: be plus a past participle
A passive construction presents the subject as receiving an action: 'The note was written by Noor.' Compare 'Noor was writing the note', where Noor was doing the writing. A past participle is not automatically passive: in 'Noor has written the note', Noor is still the writer.
See it in practice
Starting point
At six, Noor was written the instructions. By seven, she had wrote them. The instructions were print by her brother.
Using this skill
At six, Noor was writing the instructions. By seven, she had written them. The instructions were printed by her brother.
Was writing shows an action in progress, had written looks back at its completion, and were printed describes an action performed on the instructions.