SN4 ""

No	Pattern	Freq
1	[pron] be about thirty [noun]	21
2	[pers pn] be about thirty [noun]	12
3	[noun] be about thirty [noun]	11
4	there be about thirty [noun]	7
5	[ex0] be about thirty [noun]	7
6	there be about thirty [noun]	7
7	[noun sg] be about thirty [noun]	7
8	it be about thirty [noun]	6
9	it be about thirty [noun]	6
10	be about thirty [adj] [noun]	12
11	be about thirty [num] [noun]	9
12	be about thirty [noun] [prep]	12
13	be about thirty [noun] [prep]	12
14	be about thirty [noun] [adv]	6
15	be about thirty [noun] in	5
16	be about thirty [noun] [adj]	5
17	be about thirty [noun] in	5