NET

3 or when he touches human uncleanness with regard to anything by which he can become unclean, even if he did not realize it, but he has later come to know it and is guilty;

Darby

3 or if he touch the uncleanness of man, any uncleanness of him by which he is defiled, and it be hid from him, when he knoweth [it], then he is guilty^D742.

Darby Bible Notes

guilty - See Note, ver. 1.

KJV

3 Or if he touch the uncleanness of man, whatsoever uncleanness [it be] that a man shall be defiled withal, and it be hid from him; when he knoweth [of it], then he shall be guilty.

Strong's

3 Or if he touch^H5060 the uncleanness^H2932 of man^H120, whatsoever uncleanness^H2932 it be] be that a man shall be defiled^H2930 withal, and it be hid^H5956 from him; when he knoweth^H3045 of it], it, then he shall be guilty^H816.