| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for about [adj] minute | 257 |
|
| 2 | for about [num] minute | 257 |
|
| 3 | for about 20 [noun] | 33 |
|
| 4 | for [adv] 20 minute | 24 |
|
| 5 | [prep] about 20 minute | 22 |
|
| 6 | [prep] about 20 minute | 22 |
|
| 7 | for about 20 minute | 18 |
|
| 8 | for about 20 minute | 18 |
|
