to tremble /ˈtrem.bl/ /ˈtrɛmbl/
to shake /ʃeɪk/ /ʃeɪk/
to shiver /ˈʃɪv.ər/ /ˈʃɪvə/
to shudder /ˈʃʌdər/ /ˈʃʌdə/
to quiver /ˈkwɪvər/ /ˈkwɪvə/
