It will allow you to learn the "Stress" that is the most important, since it is the way in which they transmit information. The variations between "Primary Stress", "Secondary Stress" and reduced, is what you have to master. Observe the change in the intensity of the syllables. The green line shows how the intensity varies. Click on the figures to listen to the audio.

/ˈpɛnmənˌʃɪp/

Merriam