V n with n
II.14 The 'busy' group
These verbs are concerned with spending your time or energy doing something. The noun group following the verb is always a reflexive pronoun, and the pattern is V pron-refl with n.
The other women occupied themselves with their perpetual sewing.
Why trouble yourself with small details?
The preposition with is sometimes followed by an '-ing' clause.
busy concern occupy (not) trouble be taken up
She snapped on the lights and busied herself with preparing a quick dinner.