| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have been [adv] [adj] | 310 |
|
| 2 | must have been [adv] [adj] | 243 |
|
| 3 | must have been very [adj] | 62 |
|
| 4 | must have been [adv] [num] | 55 |
|
| 5 | must have been about [adj] | 43 |
|
| 6 | must have been pretty [adj] | 21 |
|
| 7 | must have been [adv] [det] | 12 |
|
| 8 | must 've been [adv] [adj] | 11 |
|
| 9 | must have been [adv] [adj -er] | 11 |
|
| 10 | must have been really [adj] | 10 |
|
| 11 | must have been quite [adj] | 10 |
|
| 12 | must have been as [adj] | 10 |
|
| 13 | must have been too [adj] | 9 |
|
| 14 | must have been [adv] hard | 9 |
|
| 15 | must have been more [adj] | 8 |
|
| 16 | must have been [adv] hard | 8 |
|
| 17 | must have been [adv] close | 7 |
|
| 18 | must have been [adv] close | 7 |
|
| 19 | must have been there [adj] | 7 |
|
| 20 | must have been [adv] three | 6 |
|
| 21 | must have been [adv] bad | 6 |
|
| 22 | must have been especially [adj] | 6 |
|
| 23 | must have been [adv] three | 6 |
|
| 24 | must have been [adv] considerable | 5 |
|
| 25 | must have been [adv] ten | 5 |
|
| 26 | must have been nearly [adj] | 5 |
|
| 27 | must have been [adv] young | 5 |
|
| 28 | must have been rather [adj] | 5 |
|
| 29 | must have been [adv] ten | 5 |
|
| 30 | must have been particularly [adj] | 5 |
|
