| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] they had been [v-ing] | 42 |
|
| 2 | [noun sg] they 've been [v-ing] | 23 |
|
| 3 | [noun sg] they have been [v-ing] | 17 |
|
| 4 | [noun sg] they have been waiting | 10 |
|
| 5 | [noun sg] they 'd been [v-ing] | 8 |
|
