PRESENT PARTICIPLE

Usual way to create a present participle:
Verbs that end in ~ar: replace ~ar with -ando (hablar/hablando)
Verbs that end in ~er: replace ~er with -iendo (tener/teniendo)
Verbs that end in ~ir: relace ~ir with -iendo (vivir/viviendo)
Common verbs that do not follow the above rules:
decir (to tell) - diciendo
ir (to go) - yendo
hacer (to make) - hecho
poder (to be able) - pudiendo
rer (to laugh) - riendo
sentir (to feel) - sintiendo
venir (to come) - viniendo