Normally in the past tense, you do not need to worry about subject-verb agreement because you can conjugate most regular past tense verbs to the singular or plural by adding an -ed to the end of the ...

We can use singular or plural verbs with many collective nouns, Pamela, and government is one of these. Singular and plural forms are often mixed as are the pronouns that refer back to the nouns ...

However, there are many types of noun and noun phrase in English, and it can be difficult to know if a particular noun takes a singular verb (such as DOES / HAS / AM / IS ) or a plural verb (DO ...