| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] at that time | 154 |
|
| 2 | [prep] [noun pl] at [adj] time | 75 |
|
| 3 | [prep] [noun pl] at that [noun] | 33 |
|
| 4 | [prep] [noun pl] [prep] that time | 26 |
|
| 5 | [prep] [noun pl] [prep] that time | 26 |
|
| 6 | [prep] [noun pl] at that time | 21 |
|
