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Back in the days before computers, the only way to check that a sentence was correct was to refer to a grammar textbook. Now, of course, a sentence can be run through your word processing program's grammar, or through a more thorough professional online grammar checker.
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?"
To join together or match a correct verb in grammar
"On a train" is correct grammar.
No. "Him and I have been together." is not correct. The word him is an object pronoun, not a subject pronoun. The proper form of the sentence is "He and I have been together."
The small blue English grammar textbook used in school in the early 1960s was most likely "Warriner's English Grammar and Composition." This textbook was commonly used in American schools during that time period as a comprehensive guide to English grammar and composition.
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."