verb “govern”
 infinitive govern; he governs; past tense governed; past part. governed; ger. governing
- (intransitive) to hold a position where you make decisions about how a place is run 
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 The president governs with the help of elected officials.
 - (transitive) to be in charge of (a country or area) and make decisions about its laws and affairs 
The president governs the country by creating and enforcing laws.
 - (of a device) to control 
The thermostat governs the temperature in the house.
 - (of a thing) to have a strong influence on how something happens or how someone behaves 
Emotions often govern how people make decisions.
 - (in grammar) to determine which preposition or grammatical form must be used with a particular word 
In English, the verb "rely" governs the preposition "on."