SN4 ""

No	Pattern	Freq
1	[be] part [prep] the problem	22
2	be part [prep] the problem	22
3	[adj] part [prep] the problem	17
4	[is] part [prep] the problem	13
5	[adj] part [prep] the problem	12
6	is part [prep] the problem	10
7	[adv] part [prep] the problem	9
8	[adv] part [prep] the problem	9
9	[prep] part [prep] the problem	8
10	[prep] part [prep] the problem	8
11	[conj] part [prep] the problem	7
12	as part [prep] the problem	7
13	only part [prep] the problem	7
14	as part [prep] the problem	7
15	only part [prep] the problem	7
16	[det] part [prep] the problem	5
17	part [prep] the [adj] problem	8
18	part [prep] the [adj] problem	6
19	part [prep] the [noun sg] problem	5
20	part [prep] the [noun] problem	5
21	part [prep] the problem be	34
22	part [prep] the problem [be]	34
23	part [prep] the problem [is]	28
24	part [prep] the problem is	27
25	part [prep] the problem [prep]	21
26	part [prep] the problem [prep]	21
27	part [prep] the problem was	6
28	part [prep] the problem of	6
29	part [prep] the problem [was/were]	6
30	part [prep] the problem of	6