This is a specific case of the misconception that sentences should not end with prepositions, or even more generally, the false prohibition on prepositional stranding. In short, yes, it isproper grammar to end a sentence with a preposition if everything else about the sentence is correct. Others disagree but they are wrong. Every modern grammar text agrees that there is nothing at all wrong with preposition stranding. What is wrong, according the Cambridge Grammar of the English Language, is to rearrange a sentence, to a form that is difficult to read or understand, in an effort to avoid preposition stranding.
For a more in-depth answer, including the other side of the argument, see "Is it proper grammar to end a sentence with a preposition?". However, much of the debate has been moved to the "Discussion" page.
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."
Ending a sentence with the word "from" generally sounds awkward and is not considered proper grammar in most cases. It is better to rephrase the sentence to avoid ending with a preposition like "from."
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, 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.
According to proper English grammar, no. "With" is a preposition. You aren't supposed to end a sentence with a preposition.
Yes. For example, What did she point at ? However, do not use 'at' with 'where.'
"Thank you." is considered a sentence in itself with the subject being the understood pronoun "I."
no, that is definitely not proper grammar.
No
No, unfortunatly it's not proper grammar. Instead of saying, "I want five!", it would be more clear if you identified what the thing is you're counting. "I have five cookies!" would make more sense.
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."
Yes, "The house is not as cheap as he thought" is proper grammar.
Ending a sentence with the word "from" generally sounds awkward and is not considered proper grammar in most cases. It is better to rephrase the sentence to avoid ending with a preposition like "from."
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.