Essay Comparison Present Tense

To indicate the continuous aspect, add a form of the verb "to be" and a present participle to your main verb. (The above is colloquial, applying 2 past particple forms to "buy".) "Wrote" and "reread" sound equally important in the first sentence.The perfect aspect is created with a form of the verb "to have" and a past participle. In the second, the past perfect form "had written" emphasizes the action "reread." Present Perfect refers to completed actions which endure to the present or whose effects are still relevant. (This could refer to any time in my past.) I have broken my leg.In technical writing, where the process is more important than who is doing the activity, we might report that “ Three liters of fluid through porous glass beads.” Regardless of the verb's purpose, only the auxiliary form of “ To be” changes; the participle stays the same.

To indicate the continuous aspect, add a form of the verb "to be" and a present participle to your main verb. (The above is colloquial, applying 2 past particple forms to "buy".) "Wrote" and "reread" sound equally important in the first sentence.The perfect aspect is created with a form of the verb "to have" and a past participle. In the second, the past perfect form "had written" emphasizes the action "reread." Present Perfect refers to completed actions which endure to the present or whose effects are still relevant. (This could refer to any time in my past.) I have broken my leg.In technical writing, where the process is more important than who is doing the activity, we might report that “ Three liters of fluid through porous glass beads.” Regardless of the verb's purpose, only the auxiliary form of “ To be” changes; the participle stays the same.

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Review carefully the material in our section on Subject-Verb Agreement, and notice how often the choices we make require a familiarity with these forms of the “ To be” verb.

We create simple yes/no questions by inverting the order of subject and the “ To be” verb.

As such, your tense choices can indicate to readers the status of the research you're citing.

You have several options for communicating research findings, and each has a different rhetorical effect.

The verb “ To be” most frequently works in conjunction with another verb: “ He is playing the piano,” “ She will be arriving this afternoon.” Occasionally, though, the verb will stand by itself, alone, in a sentence.

This is especially true in simple, brief answers to questions.

For example: If you choose the present tense, as in Example 1.1, you're implying that the findings of the research are generally accepted, whereas the present perfect tense in 1.2 implies not only general acceptance but also current relevance and, possibly, the continuity of the findings as an authoritative statement on the causes of death.

On the other hand, the past tense in Example 1.3 emphasizes the finding at the time the research was conducted, rather than its current acceptance.

When “ To be” verbs are combined with modal forms in this manner, the construction is called a phrasal modal.

Here are some more examples: Sometimes it is difficult to say whether a “ To be” verb is linking a subject to a participle or if the verb and participle are part of a passive construction.