English
Future Time Clauses
Updated Oct 28, 2026
Use present forms after when, until, and as soon as.
What you’ll learn
Use present forms after when, until, and as soon as.
ប្រើកាលបច្ចុប្បន្នក្នុងឃ្លាពេលវេលាអនាគត។
Meaning and use
In ordinary future time clauses introduced by when, before, after, until, or as soon as, use a present form rather than predictive will. The main clause can contain will. The present perfect can emphasize completion before the next event. A question such as When will she arrive? follows different rules.
ក្នុងឃ្លាពេលវេលាដែលនិយាយអនាគត ប្រើ present tense បន្ទាប់ពី when, until ឬ as soon as។ ឃ្លាមេអាចប្រើ will បាន។ សំណួរផ្ទាល់អំពីអនាគតនៅតែប្រើ will បាន។
Grammar patterns
| Pattern | Example or form |
|---|---|
| Future time clause | I will call when I arrive. |
| Completion first | We will leave after you have finished. |
Examples
-
I will text you when I get home.
ខ្ញុំនឹងផ្ញើសារពេលខ្ញុំទៅដល់ផ្ទះ។
-
Wait here until the bus arrives.
រង់ចាំទីនេះ រហូតដល់ឡានក្រុងមកដល់។
-
We will eat as soon as Dara comes.
យើងនឹងញ៉ាំភ្លាមពេលដារ៉ាមកដល់។
-
I will check it after you have finished.
ខ្ញុំនឹងពិនិត្យវា បន្ទាប់ពីអ្នកបានបញ្ចប់។
Everyday conversation
Dara: When will you send the photos?
Maly: I will send them when I get home.
Common mistakes
| Instead of | Use | Why |
|---|---|---|
| I will call when I will arrive. (time clause) | I will call when I arrive. | Ordinary future time clauses use a present form. |
| Wait until he come. | Wait until he comes. | He takes comes in the present simple. |
Practice
Try these questions before opening the answers. Write or say each answer.
សាកល្បងឆ្លើយសំណួរទាំងនេះជាមុនសិន មុននឹងបើកមើលចម្លើយ។ អ្នកអាចសរសេរ ឬនិយាយចម្លើយរបស់អ្នក។
- Complete: I will email you as soon as I ___ (know).
- Correct: We will leave before it will get dark.
- Is When will the train leave? grammatical?
Answers and explanations
Show answers / បង្ហាញចម្លើយ
-
know
Use the present simple in this future time clause.
-
We will leave before it gets dark.
Before introduces a future time clause with a present verb.
-
Yes.
This is a direct question, not a subordinate future time clause.
Quick recap
- Future time clause: I will call when I arrive.
- Completion first: We will leave after you have finished.