| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been | 1937 |
|
| 2 | [pers pn] must have been | 1514 |
|
| 3 | [noun] must have been | 920 |
|
| 4 | it must have been | 760 |
|
| 5 | it must have been | 760 |
|
| 6 | [noun sg] must have been | 542 |
|
| 7 | he must have been | 261 |
|
| 8 | there must have been | 259 |
|
| 9 | [ex0] must have been | 259 |
|
| 10 | there must have been | 259 |
|
| 11 | he must have been | 258 |
|
| 12 | [noun pl] must have been | 206 |
|
| 13 | [noun prp] must have been | 165 |
|
| 14 | [adj] must have been | 143 |
|
| 15 | she must have been | 137 |
|
| 16 | she must have been | 137 |
|
| 17 | they must have been | 129 |
|
| 18 | they must have been | 120 |
|
| 19 | [Wh det] must have been | 120 |
|
| 20 | [det] must have been | 119 |
|
| 21 | i must have been | 117 |
|
| 22 | i must have been | 116 |
|
| 23 | you must have been | 88 |
|
| 24 | [conj] must have been | 88 |
|
| 25 | you must have been | 87 |
|
| 26 | that must have been | 67 |
|
| 27 | that must have been | 67 |
|
| 28 | which must have been | 64 |
|
| 29 | which must have been | 64 |
|
| 30 | [coord] must have been | 58 |
|
