| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [v-ing] [adv prt] for | 15 |
|
| 2 | which have been [v-ing] [adv] for | 14 |
|
| 3 | [Wh det] have been [v-ing] on for | 13 |
|
| 4 | [Wh det] have been [v-ing] on for | 13 |
|
| 5 | [Wh det] have been going [adv] for | 11 |
|
| 6 | [Wh det] has been [v-ing] [adv] for | 8 |
|
