There are some words that we often use with 'example'. These are called collocations. Learn some of the verbs that we often ... We can draw from a number of past examples to predict the outcome ...
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 ...
For example, the tense may change between the methods section and the discussion section. The abstract is usually in the past tense due to it showing what has already been studied. Example: “This ...