| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] [prep] a | 1756 |
|
| 2 | has [been] [vb pp] [prep] a | 1756 |
|
| 3 | has be [vb pp] [prep] a | 1756 |
|
| 4 | has [be] [vb pp] as a | 404 |
|
| 5 | has [be] [vb pp] by a | 357 |
|
| 6 | has [be] [vb pp] in a | 231 |
|
| 7 | has [be] [vb pp] to a | 133 |
|
| 8 | has [be] [vb pp] with a | 119 |
|
| 9 | has [be] [vb pp] for a | 107 |
|
| 10 | has [be] [vb pp] into a | 102 |
|
| 11 | has [be] [vb pp] on a | 94 |
|
| 12 | has [be] used [prep] a | 67 |
|
| 13 | has [be] [vb pp] from a | 67 |
|
| 14 | has [be] described [prep] a | 52 |
|
| 15 | has [be] made [prep] a | 37 |
|
| 16 | has [be] [vb pp] at a | 31 |
|
| 17 | has [be] converted [prep] a | 27 |
|
| 18 | has [be] seen [prep] a | 26 |
|
| 19 | has [be] replaced [prep] a | 26 |
|
| 20 | has [be] transformed [prep] a | 25 |
|
| 21 | has [be] found [prep] a | 21 |
|
| 22 | has [be] developed [prep] a | 20 |
|
| 23 | has [be] accompanied [prep] a | 19 |
|
| 24 | has [be] turned [prep] a | 18 |
|
| 25 | has [be] identified [prep] a | 15 |
|
| 26 | has [be] [vb pp] through a | 15 |
|
| 27 | has [be] reported [prep] a | 15 |
|
| 28 | has [be] hailed [prep] a | 15 |
|
| 29 | has [be] suggested [prep] a | 13 |
|
| 30 | has [be] built [prep] a | 13 |
|
