Translation
been able to, been allowed to, been likely
Non
capisco
come
lui
abbia
potuto
seguire
quella
strada
.I do not understand how he was able to follow that street.
Lui
non
sa
chi
abbia
potuto
fare
questo
.He does not know who could have done this.
Non
so
come
sia
potuto
succedere
.I do not know how it could have happened.