Yes, it is, along with the other third-person forms he'll and she'll.
But it'll has a different primary connotation than the gender forms.
It means "it will" and like it will, it may not refer to an action by something.
Example:
If you poke a sleeping bear, it'll wake up. (It will = the bear will)
Example:
It'll probably rain tomorrow. (it will = the rain will occur)
Neither. The proper construction is "should've seen" (a contraction of should have).
The proper noun form Jon's may be a contraction, or it may be a possessive noun. The contraction can mean "Jon is" or "Jon has."Jon's missing - Jon is missing (contraction)Jon's left town - Jon has left town (contraction)Jon's been married twice - Jon has been married twice (contraction)Jon's car will not start. (possessive, his car)Jon's success came at a price (possessive, his success)
"Gonna" is a colloquial or informal contraction of "going to." It is not considered a proper word in formal writing, but it is commonly used in spoken English.
There is no contraction for were you. There is no contraction for you were.There is a contraction for "you are" (you're).
He's already IS a contraction. It is a contraction of he is.
Even though "what'll is often spoken, it is not recognized as a proper contraction in written form.
No. The informal contraction "ain't" means "is not" or "are not." The proper contraction forms are isn't and aren't.
'n'
The term "o'clock" means "of the clock" or "according to the clock."
No, it's a contraction of 'I would' and is a part of proper grammar.
I assume you are asking for the contraction to say something like, "Well, do you?". I am from the South and I would say "don'tcha?" for that. I do not think that is "proper English" though. However, it is a common slang.
The word ain't is a contraction of am not.I am going to use proper English every chance I get.
Neither. The proper construction is "should've seen" (a contraction of should have).
Yes, "sheep's" is perfectly acceptable as a contraction, as in "the sheep's getting out of the paddock!". However, this usage is only for the singular; where 'sheep' is used in the plural sense, the contraction would be "sheep're" for 'sheep are".
The word "weren't" is a proper contraction of the words "were not". E.g. "They were not going out" = "They weren't going out." "You were not there." = "You weren't there."
The proper noun form Jon's may be a contraction, or it may be a possessive noun. The contraction can mean "Jon is" or "Jon has."Jon's missing - Jon is missing (contraction)Jon's left town - Jon has left town (contraction)Jon's been married twice - Jon has been married twice (contraction)Jon's car will not start. (possessive, his car)Jon's success came at a price (possessive, his success)
The contraction for madam is ma'am.Example: Excuse me ma'am, you've dropped your glove.The contraction ma'am should only be used when speaking. Always use the full form when addressing someone specific, such as Madam Chairman or Dear Madam.