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Conjugation of "Defend" — All Forms, Examples, and Usage

A1 Regular

"Defend" is a regular English verb. This page lists every conjugated form of "defend" — past, present, future, and all perfect/continuous tenses — with example sentences and grammar notes useful for ESL students, writers, and language teachers.

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All 12 Tenses of "Defend"

Quick reference table — every tense form of "defend" with the first-person example and a link to the grammar guide for that tense.

Tense Example (I) Quick rule
Simple Present I defend Used for habits, facts, routines, and permanent situations. Full rule →
Simple Past I defended Used for completed actions at a specific time in the past. Full rule →
Simple Future I will defend Used for predictions, decisions made at the moment, and promises. Full rule →
Present Continuous I am defending Used for actions happening right now or temporary situations. Full rule →
Past Continuous I was defending Used for actions in progress at a specific moment in the past. Full rule →
Future Continuous I will be defending Used for actions that will be in progress at a specific future time. Full rule →
Present Perfect I have defended Used for past actions with present relevance, life experiences, or unfinished situations. Full rule →
Past Perfect I had defended Used for an action that was completed before another past action. Full rule →
Future Perfect I will have defended Used for an action that will be completed before a specific future time. Full rule →
Present Perfect Continuous I have been defending Used for actions that started in the past and continue now, with focus on duration. Full rule →
Past Perfect Continuous I had been defending Used for ongoing actions in the past that continued up to another past moment. Full rule →
Future Perfect Continuous I will have been defending Used for actions that will have been ongoing up until a specific future time. Full rule →

Past Tense of "Defend" — Defended

The past simple of "defend" is "defended" — formed by adding "-ed". Use it for actions that were completed at a specific time in the past, such as "yesterday", "last week", or "in 2020". For the full grammar of this tense, see our simple past tense guide.

Past Participle of "Defend" — Defended

The past participle of "defend" is "defended" — the same form as the past simple, since "defend" is a regular verb. Use it after "have/has/had" for perfect tenses ("I have defended") and after "be" for passive voice ("It was defended").

Is "Defend" Regular or Irregular?

"Defend" is a regular English verb. Its past simple and past participle are both formed by adding "-ed" to give "defended". The 3rd-person singular present is "defends" and the gerund/present participle is "defending".

Conjugation pattern: regular: add -ed for past simple and past participle

Common Mistakes with "Defend"

  • Wrong: She defend often.
    Correct: She defends often.
    Add "s" to the verb when the subject is third-person singular (he/she/it).

Conjugation Tables for "Defend"

Negative Forms

  • Simple present: I do not defend · He does not defend
  • Simple past: I did not defend · She did not defend
  • Present perfect: I have not defended · He has not defended

Question Forms

  • Simple present: Do you defend? · Does he defend?
  • Simple past: Did you defend?
  • Present perfect: Have you defended?

Passive Voice (where applicable)

  • Simple present passive: It is defended
  • Simple past passive: It was defended
  • Present perfect passive: It has been defended

Frequently Asked Questions About "Defend"

Is "defend" regular or irregular?
"defend" is a regular verb. Add -ed for past simple and past participle: "defended".
What is the past tense of "defend"?
The simple past of "defend" is "defended".
When do I use simple present vs present continuous with "defend"?
Use simple present for habits, facts, and routines: "I defend every day." Use present continuous for actions happening right now: "I am defending right now."

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