Yes, the form my family's is the correct contraction for for my family is.
Example: My family's spending the week at the beach.
It's is the contraction for it is....so if you are using the contraction, use the apostrophe. If you are not, then do NOT use it.
It is a contraction of 'you have'
you're
contraction
Because it's a contraction of "it is." For formal speech or writing, "It is" is more correct.
It is correct to say "The family was in the living room." "Was" is the correct verb to use when referring to a singular subject, such as "family."
It is correct to use "have" with the plural subject "you and your family". For a correct sentence, you could say, "I hope you and your family have a nice evening."
The correct answer is you and your family but if you want it to be completely correct you should write your family and you. If you want to talk about your family you should write my family and I.
That is the correct spelling of "what time is it?" -- the answer will often use the hour name o'clock which is a contraction for of the clock, or by the clock.
Lydia is...family is...Lydia and family are...
"The dog has its own collar" is grammatically correct. Many people mistakenly use "it's" in this kind of sentence, but that is the contraction for "it is," not the possessive form of "it."
It is correct to say "the family has lost everything." In this case, "family" is treated as a singular noun, so we use "has" instead of "have".