SN4 ""

No	Pattern	Freq
1	[noun] [modal v] have to be	1514
2	[pron] [modal v] have to be	991
3	[noun sg] [modal v] have to be	874
4	[pers pn] [modal v] have to be	753
5	[noun pl] [modal v] have to be	541
6	it [modal v] have to be	306
7	it [modal v] have to be	306
8	[adj] [modal v] have to be	133
9	you [modal v] have to be	115
10	you [modal v] have to be	115
11	they [modal v] have to be	112
12	there [modal v] have to be	106
13	there [modal v] have to be	106
14	[ex0] [modal v] have to be	106
15	[det] [modal v] have to be	106
16	they [modal v] have to be	105
17	[Wh det] [modal v] have to be	91
18	[conj] [modal v] have to be	83
19	which [modal v] have to be	82
20	which [modal v] have to be	82
21	[noun prp] [modal v] have to be	67
22	he [modal v] have to be	64
23	he [modal v] have to be	62
24	i [modal v] have to be	61
25	i [modal v] have to be	61
26	we [modal v] have to be	47
27	she [modal v] have to be	46
28	we [modal v] have to be	46
29	she [modal v] have to be	46
30	that [modal v] have to be	42