The present participle is a participle that
ends in ing. It can be used with the auxilliary verb 'to
be' to form the continuous tense. It
always takes the ‘ing’ form of the
verb, even irregular verbs have
an ‘...ing’ form, in fact virtually all English words that
end with ‘ing’ are present participles.
For example:-
I am learning English. (Learning is part of the continuous verb phrase 'am learning')
We were running through the woods. (Running is part of the continuous verb phrase 'were running' ).
It can also be used as an adjective.
For example:-
As an adjective: I am a working woman. (Working is used here as an adjective.)