| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb base] been [verb] [adv prt] for | 12 |
|
| 2 | they [vb base] been [vb pp] [adv prt] for | 7 |
|
| 3 | they [vb base] been [v-ing] [adv prt] for | 5 |
|
