Tər\tu͂\tmes\tya\tfiko ,\tdoy\tmes\tya\tfiko ,\ttrey\tmes\tfiko .
then\tone\tmonth\tPST\tbecome.PST\ttwo\tmonth\tPST\tbecome.PST\tthree\tmonth\tbecome.PST
So, a month went by, two months passed, and three months passed.