It depends on the usage. "The father and son went to the movies together" would be OK, but most of the time you would say "the father and the son" or "the father and his son" to make it more clear.
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
The correct grammar is: "Are those correct?"
I think you mean "When was your father born?"
The correct grammar for this sentence is: "When did you send it?"
No, the correct grammar would be "I hate you the way you hate me."
Do you know what correct grammar is? Do you know what correct grammar is?
I'm not sure but my father seems to have it.
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
No, it is correct grammar, not a correct grammar.
The correct grammar is: "Are those correct?"
"On a train" is correct grammar.
I think you mean "When was your father born?"
The correct grammar for this sentence is: "When did you send it?"
No, the correct grammar would be "I hate you the way you hate me."
no_____If the sentence is You do do that (meaning You are in the habit of doing that) the grammar is perfectly correct and the sentence 'does have correct grammar'.
"July has just been started" is not correct grammar, instead the correct grammar is "July has just started."
It is correct if you are talking about more than one nephew. If only one nephew is involved, it is nephew's father. My nephew's father is my brother. I am talking about one specific nephew. If you mean to refer to the father of your nephews, then it would be nephews' father.