Readers are familiar with this tense because they are used to being told a story that has already taken place. For most verbs you add an 'ed' at the end of the word to change it to the past tense ...

Passive voice also allows one to help move words to emphasize them. Passive voice can also be useful when emphasizing the action but not the one doing the action. Example: “In the geographic areas ...

Swam' is the correct past tense of the verb to swim, not 'swimmed'. 2. For words that end in a short vowel sound followed by a consonant, you need to double the last letter then add the suffix.