Two forms to recognise
A participle is a verb form used in a larger verb phrase or a description. The present participle ends in -ing: running, writing, playing. Regular past participles end in -ed, as in played. Irregular ones include written, taken, and seen. Learn irregular verbs as a set: write, wrote, written.
A form is not a tense
The names 'present participle' and 'past participle' do not tell you the time by themselves. In 'Noor was running', running is a present participle, but was places the action in the past. Compare 'I wrote a note yesterday' with 'I have written a note': wrote is a simple past form; written is a past participle.
Notice the job of an -ing form
The same -ing form can have different jobs. In 'Noor is running', it helps form a continuous verb phrase. In 'Running keeps Noor fit', it names an activity and works as the subject; traditional grammar calls this use a gerund. Read the whole sentence before deciding what the form does.
See it in practice
Starting point
Noor is run around the park. She has wrote a note about her route.
Using this skill
Noor is running around the park. She has written a note about her route.
After is, running forms the continuous verb phrase. After has, use the past participle written, rather than the simple past form wrote.