| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] while [adv] at | 15 |
|
| 2 | [noun sg] while [adv] at | 8 |
|
| 3 | while [verb] [adv] at | 7 |
|
| 4 | while [v-ing] [adv] at | 7 |
|
| 5 | while [adv] [verb] at | 5 |
|
| 6 | while [adv] at [noun] | 28 |
|
| 7 | while [adv] at [noun sg] | 18 |
|
| 8 | while [adv] at [noun prp] | 10 |
|
| 9 | while [adv] at school | 10 |
|
| 10 | while [adv] at school | 10 |
|
