| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they had [been] at the [noun sg] | 6 |
|
| 2 | they had [be] at the [noun sg] | 6 |
|
| 3 | they had be at the [noun sg] | 6 |
|
| 4 | they had been at the [noun sg] | 6 |
|
