| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i have been thinking | 169 |
|
| 2 | i 've been thinking | 130 |
|
| 3 | i have been thinking | 24 |
|
| 4 | i 'd been thinking | 9 |
|
| 5 | i had been thinking | 6 |
|
