You can use either a period (.) or an exclamation point (!) because "I bet" is a complete sentence.
The Cambridge Dictionary defines the phrase 'I bet' as someone say 'yes, i agree'. One could say that it is much easier to say 'you bet'. But, one would use 'yes, I agree' when talking in formal language.
No punctuation mark is particularly faster than others.
It is written as and/or
I do not know, but I bet we're going to find out. We're going for a walk.
All sentences use punctuation, if only a period at the end.
Open punctuation typically refers to the style of punctuation that uses minimal punctuation, often omitting periods and other marks at the end of a sentence. As such, it does not require the use of a specific letter.
maybe because the cooperation does not allow the punctuation.
Use commas to separate the elements in an address (e.g., street, city, state). There is no need to use punctuation at the end of each line in an address unless it is the last line.
Traditional Japanese haiku typically do not use punctuation. However, modern haiku in English may include punctuation for clarity or emphasis.
After the salutation of a business letter, the correct punctuation to use is a colon.
You can use a colon after please note, but you could also use the word that. You can say something like, Please note: we are starting early. Or you can say, please note that we are starting early.
inverted commas