"I have gone to the park yesterday."
Translation:Dw i wedi mynd i'r parc ddoe.
Is 'i have gone ... yesterday' really correct in English? I have literally never heard anyone say that in my life (native speaker from the uk)
"I have gone to the park yesterday" is simply not English! I fear that a non-native speaker of English must be writing this course...
There are many sentences like this coming up. Hopefully they will be fixed eventually.