Collocations for convenient - adj.

be, prove, seem
make sth
find sth
I find the new system much more convenient.

extremely, fairly, very, etc.
highly
mutually (esp. BrE)
We arranged a mutually convenient time to meet.

politically

for
Would this be convenient for you?
The house is very convenient for the shops. (BrE)

to (AmE)
The house is convenient to downtown.

Convenient is used with these nouns:
excuse, explanation, location, means, myth, parking, place, route, scapegoat, shorthand, size, spot, starting point, timing, way