In the adverbial function (reading, going) it does not decline, in the adjectival function - it is declined as an adjective. Formation: from 1st person plural form présent , by changing the ending -ons to -ant:
parlons | parlant |
allont | allant |
finissons | finissant |
buvons | buvant |
Exceptions:
savoir – sachant
avoir – ayant
être – étant
Participe présent is often preceded by the particle en (so called gérondif):
en parlant
en finissant