It couldn't be better.

it Pronoun

— used to refer to an object without identifying or describing it; the object might have been described earlier in the text. The house was very big. It had many rooms. — used to describe the weather It is very hot today. I'm staying in because it is raining — used to describe a situation in general I don't like it when people tell me to do something. It is hard to find a job.

it Abbreviation

— It can be a short way of writing: — # Italy or Italian — # Information Technology, the use of computers

couldn't Contraction

— The contraction of "could not". He couldn't make it to work yesterday because he was sick. I couldn't believe how rude she was.

be Verb

— This verb tells us that a thing is present, or in a place. The book is on the table. There was someone in the room. Were you at the party? — Happen The party was on Saturday. The next meeting will be here. — Go somewhere; visit someone (only in the present perfect tense) I've never been to Disneyland. — A verb we use when describing. The book is blue. They were sad about losing the match. John is 35 years old this year. Im fine. He'd like to be a doctor. The film was terrible! The book is 5 euro. — Act like someone or something Look, Mummy! I'm being a dog! Woof, woof! — We use a form of be and a gerund-participle to make progressive verb forms. He is sitting on the chair. I've been waiting for half an hour. They will be leaving on Tuesday.

better Verb

— To improve. I intend to better my situation by going back to school.

better Noun

— Another way to spell bettor. — Someone or something who is superior to another. I thought I was the best around, but I found my better when I played John.