Strees on 1 st syllable

+Festival /ˈfestəvəl/

+Beautiful /ˈbyo͞odəfəl/

+Celebrate /ˈseləˌbrāt/

+Classify /ˈklasəˌfī/

+Cooking /ˈko͝okiNG/

+Modernize /ˈmɒd.ən.aɪz/

Strees on 2 nd syllable

+Employee /emˈploiē/

+Technician /tekˈniSHən/

+Convenience /kənˈvēnyəns/

+Consumption /kənˈsəm(p)SH(ə)n/ 

+Determine /dəˈtərmən/

+Abundant /əˈbəndənt/

+Preventing /prɪˈventing/

+Condition /kənˈdɪʃ.ən/

+Eighteen /āˈtēn/

+Accountant /əˈkaʊn.tənt/

Strees on 3 rd syllable

+Engineer /ˌenjəˈnir/

+Chimpanzee /ˌtʃɪm.pænˈziː/

+Comprehend /ˌkämprəˈhend/

Stress on 1st syllable:    festival, beautiful, celebrate, classify, cooking, modernize.

Stress on 2nd syllable:  employee, technician, convenience, consumption, determine, abundant, preventing, condition, eighteen, accountant.

Stress on 3rd syllable:    engineer, chimpanzee, comprehend.