SN4 ""

No	Pattern	Freq
1	[vb mod] be kept [adj]	162
2	[modal v] be kept [adj]	162
3	should be kept [adj]	53
4	should be kept [adj]	53
5	must be kept [adj]	45
6	must be kept [adj]	45
7	can be kept [adj]	19
8	can be kept [adj]	19
9	will be kept [adj]	16
10	will be kept [adj]	15
11	[modal v] be kept open	14
12	could be kept [adj]	13
13	could be kept [adj]	13
14	[modal v] be kept clean	12
15	[modal v] be kept separate	12
16	[modal v] be kept alive	10
17	[modal v] be kept clear	7
18	would be kept [adj]	7
19	may be kept [adj]	7
20	would be kept [adj]	7
21	may be kept [adj]	7
22	[modal v] be kept secret	7
23	[modal v] be kept confidential	7
24	[modal v] be kept low	6
25	[modal v] be kept busy	6
26	[modal v] be kept warm	6
27	[modal v] be kept dry	5
28	[modal v] be kept moist	5