区别:rainy rain raining rains raind最好能有句子说明,那样我会追加积分并填空:It's _____dayIt is______ 可不可以写成It is rainy?

it's rainy day
it is raining
rainy :describe the weather of the day
adjective
ex.yesterday was a rainy day
rain :verb
ex it will rain soon
raining :verb ( present continuous tense )
ex it is raining
rains :verb (present tense )
ex it rains
rained :verb ( past tense )
it rained yesterday