If you are writing proper grammar you should not use 'then' at the beginning of a sentence.
Yes, starting a sentence with "then" is grammatically correct, especially when showing a sequence of events or actions. However, it is usually used sparingly to avoid overuse and maintain variety in sentence structure.
The proper grammar for that sentence is "She was much better than yesterday." This sentence is in the past tense and correctly compares her current state to how she was yesterday.
No, the sentence "I wish you were as smart as they" is not proper grammar. It should be "I wish you were as smart as them" because "them" is the object pronoun used after the preposition "as."
The proper grammar is "There has come a time." "There" is the subject of the sentence and is singular, hence the correct verb form to use is "has" instead of "have."
The proper grammar is "a urinary" because the word "urinary" begins with a consonant sound, even though the first letter is a vowel.
Yes, "you and I" is the proper grammar when the phrase acts as the subject of a sentence. For example, "You and I are going to the store."
no, that is definitely not proper grammar.
No
No
Yes, "The house is not as cheap as he thought" is proper grammar.
The proper grammar is "There has come a time." "There" is the subject of the sentence and is singular, hence the correct verb form to use is "has" instead of "have."
Yes. That sentence is proper as written.
No, the sentence "I wish you were as smart as they" is not proper grammar. It should be "I wish you were as smart as them" because "them" is the object pronoun used after the preposition "as."
Yes. For example, What did she point at ? However, do not use 'at' with 'where.'
Yes, "you and I" is the proper grammar when the phrase acts as the subject of a sentence. For example, "You and I are going to the store."
"She did not have" is the proper grammar.
yes as you proceed into the building, be sure to drop off your papers.
According to proper English grammar, no. "With" is a preposition. You aren't supposed to end a sentence with a preposition.