Collocations for impotent - adj.

be, feel, prove
remain
leave sb, make sb, render sb
Companies are rendered impotent by all the rules and regulations.

completely, utterly
virtually
politically

against
They were virtually impotent against the power of the large companies.

be
become
leave sb, make sb
The operation left him impotent.

sexually

Impotent is used with these nouns:
fury, rage