Go up (intransitive = no object)
meaning: to rise, to increase (usually used for prices and costs)*
e.g. The price of
gasoline is going up.
The cost of
a TTC Metropass goes up every year.
Since I've
been in Toronto
* (the price goes up, you can't say the went up the price)
Go down (intransitive = no object)
meaning: to fall, to decrease (also used for prices and
costs)
e.g. The price of
tablet PCs is going down.
The cost of
gasoline never goes down on Friday.
The TV I
want is on sale. The price has gone down
by $200.
Transitive verb sentences (there is an object): raise, lowered
e.g. The gas company
raised the price of gasoline by 3 cents a litre.
After Christmas
most stores lower their prices.
