| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at [det] time | 502 |
|
| 2 | [adv prt] at [det] time | 151 |
|
| 3 | back at [det] [noun] | 35 |
|
| 4 | back at [det] [noun sg] | 31 |
|
| 5 | back [prep] [det] time | 22 |
|
| 6 | back [prep] [det] time | 22 |
|
| 7 | back at [adj] time | 10 |
|
| 8 | back at [det] time | 9 |
|
| 9 | back at [det] time | 9 |
|
| 10 | back at [det] time | 9 |
|
