The verb to understand · Conjugation
Present Perfect of understand
The answer: have / has understood
B1
A past action with a link to the present.
Quick answer
The Present Perfect of the verb to understand is have / has understood.
Example: I have always understood the lesson.
Full conjugation in the Present Perfect
| Pronoun | Form | Contraction |
|---|---|---|
| I | have understood | I've understood |
| You | have understood | You've understood |
| He / She / It | has understood | He's / She's / It's understood |
| We | have understood | We've understood |
| You (pl.) | have understood | You've understood |
| They | have understood | They've understood |
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 understand, use understood with a finished time and have understood 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. He have understood ❌
With he, she and it, use has, not have: he has understood, my friend has understood. The short form is he's understood. Careful: here 's means has, not is.
Practice quiz
Going further
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Frequently asked questions
How do you conjugate understand in the Present Perfect?+
Use have or has + the past participle understood. Use has with he, she and it. Use have with I, you, we and they: I have understood, she has understood. Short forms: I've understood, she's understood.
What is the past participle of understand?+
The past participle of understand is understood. You use it after have, has and had. It is the same as the Past Simple: understood.
When do you use the Present Perfect of understand?+
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 understood…? Use it for a recent action with a result now, often with just: I have just understood… 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 understood and I have understood?+
I understood (Past Simple) goes with a finished time: yesterday, last week, in 2020, two days ago. I have understood (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 understand in the Present Perfect?+
Negative: I haven't understood, she hasn't understood. Question: put have or has before the subject: Have you understood…?, Has she understood…? The word yet often goes at the end of a negative or a question: Have you finished yet?
Related pages: understand 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/understand/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.
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