| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | about last [noun sg] | 97 |
|
| 2 | about last [noun sg] | 97 |
|
| 3 | about last night | 55 |
|
| 4 | about last week | 21 |
|
| 5 | about last time | 6 |
|
| 6 | about last year | 6 |
|
| 7 | about last month | 5 |
|
