full	short	when	why
all there is		keep	the verb carries the stress: "all there is in this world"
do you not	don't you	always	
did you not	didn't you	always	
are you not	aren't you	always	
is it not	isn't it	always	
will you not	won't you	always	
have you not	haven't you	always	
is he not	isn't he	always	
have I not	haven't I	always	
am I not	aren't I	always	
will not	won't	always	
would not	wouldn't	always	
I am	I'm	before a word	
you are	you're	before a word	
we are	we're	before a word	
they are	they're	before a word	
he is	he's	before a word	
she is	she's	before a word	
it is	it's	before a word	
that is	that's	before a word	
there is	there's	before a word	
here is	here's	before a word	
who is	who's	before a word	
what is	what's	before a word	
how is	how's	before a word	
where is	where's	before a word	
I will	I'll	before a word	
you will	you'll	before a word	
he will	he'll	before a word	
she will	she'll	before a word	
we will	we'll	before a word	
they will	they'll	before a word	
it will	it'll	before a word	
I shall	I'll	before a word	
you shall	you'll	before a word	
we shall	we'll	before a word	
I would	I'd	before a word	
you would	you'd	before a word	
he would	he'd	before a word	
she would	she'd	before a word	
we would	we'd	before a word	
they would	they'd	before a word	
I have	I've	before a past participle	
you have	you've	before a past participle	
we have	we've	before a past participle	
they have	they've	before a past participle	
he has	he's	before a past participle	
she has	she's	before a past participle	
it has	it's	before a past participle	
I had	I'd	before a past participle	
you had	you'd	before a past participle	
he had	he'd	before a past participle	
she had	she'd	before a past participle	
we had	we'd	before a past participle	
they had	they'd	before a past participle	
let us	let's	before a word	
do not	don't	always	
does not	doesn't	always	
did not	didn't	always	
is not	isn't	always	
are not	aren't	always	
was not	wasn't	always	
were not	weren't	always	
have not	haven't	always	
has not	hasn't	always	
had not	hadn't	always	
could not	couldn't	always	
should not	shouldn't	always	
cannot	can't	always	
can not	can't	always	
who would	who'd	before a word	
who will	who'll	before a word	
who have	who've	before a past participle	
that will	that'll	before a word	
who had		never	"who'd" reads as "who would"
who has		never	"who's" reads as "who is"
what has		never	"what's" reads as "what is"
what had		never	"what'd" is not written
what are		never	"what're" is not written
that has		never	"that's" reads as "that is"
that had		never	"that'd" is not written
that have		never	"that've" is not written
it had		never	"it'd" reads as "it would" and is not written
it would		never	"it'd" reads as a slip in print
how would		never	"how'd" reads as "how did"
how shall		never	"shall" after "how" has no short form
here would		never	no short form
who are		never	"who're" is not written
where are		never	"where're" is not written
that are		never	"that're" is not written
there are		never	"there're" is not written
here are		never	"here're" is not written
you is		never	not a subject and its verb: "any of you is"
shall not		never	"shan't" is British and old
may not		never	"mayn't" is not written
am not		never	"I'm not" covers it, and "amn't" is not English
may I not		never	"mayn't I" is not English
here have		never	"here" is no subject: "plenty here have done worse"
you has		never	"each of you has": the verb belongs to "each", and "you's" is not written
fills it will		keep	"it" is the object and "will" belongs to the subject before it: "the one who fills it will be"
what would		never	"what'd" reads as "what did"
what will		never	"what'll" reads as speech spelled out, not as print