Breakdown of O cão ainda rói o osso?
o cão
the dog
ainda
still / yet / even (with comparatives)
o osso
the bone
roer
to gnaw
Questions & Answers about O cão ainda rói o osso?
Why does ainda come before the verb rói?
What verb is rói, and why does it have an accent mark?
This is the third-person singular present tense of roer (to gnaw or to chew). It gets an accent mark to tell you to put the stress on the open o sound. Some present tense forms of this verb are a bit irregular, such as the I form: eu roio.
Could I say ainda está a roer instead of ainda rói?
Yes, absolutely! In European Portuguese, the continuous structure (estar a plus infinitive) is very common for actions happening right now. O cão ainda está a roer o osso? means the exact same thing and sounds completely natural.