This site says:
When two or more verbs have the same subject the verbs must be parallel. Parallel verbs mean the verbs used in a sentence should all be the same tense
Yesterday Donna watched a movie, cleaned her apartment and was making lunch.:
The sentence is not correct because watched and cleaned are the simple past tense, but was making is the past progressive. The verbs are not parallel.
The correct sentence should be:
Yesterday Donna watched a movie, cleaned her apartment and made lunch.
Is "This hat is small and has a nice color" grammatically wrong?
I am not sure "is" & "has" belong to the same tense?