| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to be an | 1326 |
|
| 2 | [vb pp] to be an | 368 |
|
| 3 | [vb -s] to be an | 327 |
|
| 4 | [vb infin] to be an | 219 |
|
| 5 | [vb past] to be an | 219 |
|
| 6 | seem to be an | 178 |
|
| 7 | [noun] to be an | 176 |
|
| 8 | [adj] to be an | 169 |
|
| 9 | [adv] to be an | 156 |
|
| 10 | appear to be an | 156 |
|
| 11 | [adj] to be an | 139 |
|
| 12 | [v-ing] to be an | 127 |
|
| 13 | have to be an | 122 |
|
| 14 | [noun sg] to be an | 120 |
|
| 15 | seems to be an | 98 |
|
| 16 | [adv prt] to be an | 93 |
|
| 17 | [pron] to be an | 92 |
|
| 18 | prove to be an | 84 |
|
| 19 | going to be an | 83 |
|
| 20 | out to be an | 83 |
|
| 21 | go to be an | 83 |
|
| 22 | out to be an | 83 |
|
| 23 | [be] to be an | 81 |
|
| 24 | be to be an | 81 |
|
| 25 | appears to be an | 75 |
|
| 26 | [pers pn] to be an | 73 |
|
| 27 | [vb base] to be an | 59 |
|
| 28 | [was/were] to be an | 57 |
|
| 29 | have to be an | 54 |
|
| 30 | likely to be an | 54 |
|
