| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adj] for | 271 |
|
| 2 | [modal v] have been [adj] for | 240 |
|
| 3 | [modal v] have been necessary [prep] | 13 |
|
| 4 | [modal v] have been necessary [prep] | 13 |
|
| 5 | [modal v] [vb infin] been necessary for | 8 |
|
| 6 | [modal v] have [been] necessary for | 8 |
|
| 7 | [modal v] have [be] necessary for | 8 |
|
| 8 | [modal v] have been necessary for | 8 |
|
| 9 | [modal v] have been necessary for | 8 |
|
| 10 | [modal v] have been necessary for | 8 |
|
| 11 | [modal v] have be necessary for | 8 |
|
| 12 | [modal v] [verb] been necessary for | 8 |
|
