The past participle for ' é' ' verbs is formed as follows:
1. Get the verb in its infinitive form:
recoxé'
2. Remove the ' é' '
recox-
3. Then add a 'ío'
recoxío
4. Join it to the verb 'havé''
llo ha recoxío
In the next installment I will give you some examples on irregular formations of the 'past participle'