write + prone to
kaki gachi
prone to; tends to (usually a negative pattern)
meaning: tend to write
大事な約束を忘れがちなので、手帳にメモするようにしている。
daiji na yakusoku o wasure gachi na node, techou ni memo suru you ni shite iru.
I tend to forget important appointments, so I make a point of noting them in my planner. neutral
子供の頃は病気がちで、よく学校を休んでた。
kodomo no koro wa byoukigachi de, yoku gakkou o yasundeta.
As a kid I was sickly and often missed school. casual