No | Pattern | Freq | Relations |
---|---|---|---|
1 | [pron] could [not/n't] have been [det] | 16 | |
2 | [pers pn] could [not/n't] have been [det] | 11 | |
3 | could [not/n't] have been [det] [noun] | 6 | |
4 | could [not/n't] have been [det] [noun sg] | 6 | |
5 | could [not/n't] have been [det] [adj] | 5 | |
6 | could [not/n't] have been [det] [adj] | 5 |