| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but i 've been [v-ing] | 31 |
|
| 2 | but i 've been [vb pp] | 15 |
|
| 3 | but i 've been think | 6 |
|
| 4 | but i 've been thinking | 6 |
|
