Final answer:
Common strong or irregular verbs in English include 'swim', 'run', 'go', 'do', 'sing', and 'write'. These verbs don't follow regular conjugation patterns and are key to expressing actions in various tenses, critical to English verb tense consistency.
Step-by-step explanation:
Examples of common strong verbs, also known as irregular verbs, in English are found in options (a), (c), and (d). These comprise verbs such as swim, run, go, do, sing, and write. Irregular verbs are unusual as they do not follow the regular conjugation patterns of past tense and past participle forms that usually require simply adding a '-d' or '-ed'. For instance, 'write' becomes 'wrote' in past tense, not 'writed'.
Irregular verbs are crucial for expressing action in different tenses and being fluent in English verb tense consistency. This is important for both active and passive voice formations.
Learn more about Irregular Verbs