The verb to swear · Conjugation
Present Perfect of swear
The answer: have / has sworn
B1
A past action with a link to the present.
Quick answer
The Present Perfect of the verb to swear is have / has sworn.
Example: I have already sworn to tell the truth.
Full conjugation in the Present Perfect
| Pronoun | Form | Contraction |
|---|---|---|
| I | have sworn | I've sworn |
| You | have sworn | You've sworn |
| He / She / It | has sworn | He's / She's / It's sworn |
| We | have sworn | We've sworn |
| You (pl.) | have sworn | You've sworn |
| They | have sworn | They've sworn |
Common mistakes to avoid
1. I have seen him yesterday ❌
Do not use the Present Perfect with a finished time (yesterday, last week, in 2020, two days ago). Use the Past Simple: I saw him yesterday. With swear, use swore with a finished time and have sworn without one.
2. I live here since 2020 ❌
Some situations started in the past and are still true now. For them, use the Present Perfect: I have lived here since 2020, I have known her for three years. Use since + a starting point (since Monday, since 2020). Use for + a length of time (for two weeks, for a long time).
3. I have swore ❌
After have or has, use the past participle, not the Past Simple: I have sworn. The Past Simple of swear is swore, and the past participle is sworn. Learn the three forms together: swear, swore, sworn.
Practice quiz
What's next?
Master the Present Perfect of swear when you speak, not just on paper
The conjugation is clear in your head. On PLAY, you practise it in a game, with instant feedback, until it comes out on its own.
Practise the Present Perfect of swear on PLAYFree · No sign-up · 3 minutes
For teachersYour whole class practises the Present Perfect of swear, and you follow each student
The Academy has self-marking activities on this form, with a dashboard for each student: you see at a glance who is falling behind.
Discover the Academy30-day free trial · No bank card needed
English contestThe English contest tests the Present Perfect of swear in real sentences
Instead of a single school exercise, your students meet this tense in context, in a contest that really motivates them.
Register my students5,000 students every year · Primary and secondary
Frequently asked questions
How do you conjugate swear in the Present Perfect?+
Use have or has + the past participle sworn. Use has with he, she and it. Use have with I, you, we and they: I have sworn, she has sworn. Short forms: I've sworn, she's sworn.
What is the past participle of swear?+
The past participle of swear is sworn. You use it after have, has and had. It is different from the Past Simple. Learn the three forms together: swear, swore, sworn.
When do you use the Present Perfect of swear?+
Use it for a past action that is connected to now, with no exact time. Use it for experiences in your life: Have you ever sworn…? Use it for a recent action with a result now, often with just: I have just sworn… Use it also for a situation that started in the past and continues: I have lived here since 2020.
What is the difference between I swore and I have sworn?+
I swore (Past Simple) goes with a finished time: yesterday, last week, in 2020, two days ago. I have sworn (Present Perfect) has no finished time, and the result is important now. Signal words: ever, never, already, just, yet.
How do you make the negative and the question of swear in the Present Perfect?+
Negative: I haven't sworn, she hasn't sworn. Question: put have or has before the subject: Have you sworn…?, Has she sworn…? The word yet often goes at the end of a negative or a question: Have you finished yet?
Related pages: swear Present Perfect
Pages on a similar topic or with a similar use, so you can keep exploring.
Updated on 12 November 2026 by the Big Challenge teaching team. Every year, more than 500,000 students across Europe take part in our English contest, created in 1999. Our teaching approach →
The Big Challenge · Updated on 12 November 2026 · Source: www.thebigchallenge.com/bl/academy/learn-english/verbs/swear/present-perfect
© The Big Challenge. Copying allowed for classroom use. Every year, more than 500,000 students across Europe take part in our English contest, created in 1999.
Keep learning
More forms of the verb to swear are coming soon.