V-masu stem / い-adj -い / な-adj + そうだ
looks like, seems about to
Your own impression from looking. Attaches to the *stem*, not the plain form. いい becomes よさそう and ない becomes なさそう — irregular, and regularly tested. Never used for things you can see plainly: you don't say 赤そうです about something obviously red.
このケーキはおいしそうですね。
この ケーキは おいしそうですね。
This cake looks delicious.
今にも雨が降りそうです。
いまにも あめが ふりそうです。
It looks like it could rain any minute.
Which pattern is each sentence using?
このケーキはおいしそうですね。
This cake looks delicious.
今にも雨が降りそうです。
It looks like it could rain any minute.