Memorized vs. Memorize – Which is Correct?
Both “memorize” and “memorized” are correct English words, but they serve different grammatical purposes. “Memorize” is the base-form verb meaning to learn something by heart, while “memorized” is its simple past tense or past participle. Choose “memorize” for present or future actions and “memorized” for completed learning in the past.
Memorized or Memorize – Which is Correct?
Memorize and memorized are both correct American English words. The difference is grammatical: memorize is the base form and present-tense verb, while memorized is the past tense and past participle.
Use memorize when describing an action that happens now, happens regularly, or will happen in the future. Use memorized when the learning was completed in the past or when it describes something already committed to memory.
The Best Trick to Remember the Difference
Use the ending -ed as your clue. In most regular English verbs, -ed signals a completed action. Therefore, memorize means “learn by heart,” while memorized means “already learned by heart.”
Try the swap test: if the sentence includes will, to, or must, use memorize: “I need to memorize the speech.” If the sentence includes yesterday, already, or had, use memorized: “She had memorized the speech.”
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| memorize | Verb, base form | To learn something so it can be recalled without help | I need to memorize these vocabulary words. |
| memorized | Verb, past tense or past participle | Learned something so it could be recalled without help | He memorized the entire poem. |
How to Use Memorize
Memorize is the base form of the verb. It describes the process of learning information exactly or nearly exactly so that you can recall it later without reading or hearing it again. It commonly appears after to, after modal verbs such as can and must, or as a present-tense verb with the subjects I, you, we, and they.
The word is neutral in tone and works in casual, academic, professional, and formal writing. You can memorize facts, formulas, lines, passwords, names, vocabulary, instructions, or entire passages.
Example 1: Students often memorize key formulas before a mathematics examination.
Example 2: Please memorize the emergency procedure before beginning the training session.
Example 3: I can memorize a phone number more easily when I group the digits.
What are the different forms of Memorize?
Memorize is a regular verb. Its main forms are memorize (base form), memorizes (third-person singular present), memorized (simple past and past participle), and memorizing (present participle and gerund).
In American English, the spelling is memorize with a z. The related noun is memorization, and the related adjective is memorable, although memorable usually means worth remembering rather than learned by heart.
Etymology of the word Memorize
Memorize developed from memory and ultimately traces back to Latin memor, meaning “mindful” or “remembering.” The verb entered English in the nineteenth century and follows the common pattern of forming a verb with the suffix -ize.
How to Use Memorized
Memorized is the simple past tense and past participle of memorize. Use it when someone completed the act of learning something by heart. It can stand alone as a past-tense verb or follow helping verbs such as has, have, had, or was.
As a past participle, memorized can also function adjectivally. For example, a “memorized response” is a response learned in advance and repeated from memory, sometimes suggesting that it sounds rehearsed rather than spontaneous.
Example 1: Maya memorized the presentation before the conference.
Example 2: We had memorized the route before starting the hike.
Example 3: The actor delivered a memorized line with confidence.
What are the different forms of Memorized?
Memorized is not a separate verb; it is one form of memorize. It functions as the simple past tense in sentences such as “They memorized the poem,” and as a past participle in sentences such as “They have memorized the poem.” It can also describe a noun, as in “a memorized speech.”
Etymology of the word Memorized
Memorized comes from the verb memorize plus the regular past-tense ending -ed. The base word relates to memory and ultimately derives from Latin memor, meaning “remembering” or “mindful.”
Related Concepts
Understanding verb forms and memory-related vocabulary makes it easier to choose between memorize and memorized accurately.
- Base-form verbs: The base form is the simplest form of a verb. It appears after to and modal verbs, as in “to memorize” and “can memorize.”
- Simple past tense: The simple past describes a completed action. Because memorize is regular, its past tense is formed by adding -ed: memorized.
- Past participles: A past participle works with helping verbs such as has, have, and had, or may act as an adjective: “She has memorized the poem.”
- Memorization and recall: Memorization is the process of storing information, while recall is the act of bringing stored information back to mind.
Examples from Media and Literature
These examples show how the two forms commonly appear in stories, performances, education, and public communication:
- Shakespearean theater: Actors memorize long speeches and then perform them for an audience. A review might say that an actor memorized a difficult soliloquy.
- Poetry: Students may memorize a poem for a classroom recital, while a literary discussion may describe a poem as already memorized by a character.
- Film and television: A performer might memorize dialogue before filming, whereas a character who repeats a prepared answer may be described as giving a memorized response.
- News reporting: Articles about academic competitions often explain that contestants memorize facts, rules, or passages before competing.
- Public speaking: A speaker may memorize an opening statement but use notes for the rest of a presentation.
Practice Exercises
Choose the correct word to complete each sentence.
- I plan to ________ the first verse before the recital.
- Jamal ________ every step of the procedure last night.
- You should ________ the new security code before the system changes.
- She has ________ the names of all the team members.
- They ________ the address before leaving home.
Answer Key
- memorize
- memorized
- memorize
- memorized
- memorized
Memorize Synonyms
| Synonym | Definition |
|---|---|
| learn by heart | To learn something well enough to recite or reproduce it from memory |
| commit to memory | To deliberately store information in one’s memory; more formal than memorize |
| learn | To acquire knowledge or a skill, though not necessarily through exact repetition |
| retain | To continue to remember or keep information in the mind |
Memorized Synonyms
| Synonym | Definition |
|---|---|
| learned by heart | Learned well enough to repeat or reproduce from memory |
| committed to memory | Deliberately stored in the mind; a formal alternative to memorized |
| recalled | Brought back to mind, although it does not always imply deliberate memorization |
| retained | Kept in the memory after learning or experiencing something |
Frequently Asked Questions
Question 1: Is “memorized” the past tense of “memorize”?
Yes. Memorized is the regular simple past tense and past participle of memorize.
Question 2: Should I say “I memorized” or “I memorize”?
Use “I memorized” for a completed action in the past: “I memorized the speech yesterday.” Use “I memorize” for a present habit or general statement: “I memorize new words every morning.”
Question 3: Is “memorize” spelled with an s or a z?
In American English, the standard spelling is memorize with a z. British English commonly uses memorise with an s.
Conclusion
Memorize and memorized are both correct, but they indicate different times or grammatical functions. Use memorize for the base form and present or future actions; use memorized for completed actions and past participles. Pro Tip: Choosing the correct verb form improves clarity and helps maintain a polished, professional reputation in writing.
