Yes.
While I must say the question was hard to read, I do believe it's possible.
PS: I just did.
"You are" is present tense, happening now,, while "sat" is past tense. so this sentence doesn't work. :" You are sitting writing this," although awkward is correct.
I ate the ketchup, and she drank the motor oil; it was a disaster.
Yes. Many people think there is a rule against ending a sentence with a preposition. If that were true, then it would not be grammatically correct to say, "Where are you from?" However, most grammarians do not think there is such a rigid rule. Although you could avoid the preposition at the end by saying "From where are you?", that is not how people actually speak and write English. So most would say that it is perfectly correct to say, "Where are you from?"
It is not correct. The correct sentence should be as follows: "At what time would you come?" or 'At what time would you like to come?" or "At what time will you come?" or "would you come at what time?" or "Will you come at what time?" or "At what time will you like to come?" The verb 'should' is not used while asking questions since should is used a modal verb--which does not change its form with first, second or third person nouns or pronouns--used sparingly almost in imperative sentences and in sentences that suggestive of advice.
The correct way to start a sentence with a number is to spell it out... For example... 'Three people were injured' is correct while '3 people were injured' is not.
Yes, very correct.
Yes, starting a sentence with a present participle is grammatically correct. For example, "Running quickly, she made it to the finish line first."
The sentence "Can you pass the salt please?" is grammatically correct. It is a polite request asking someone to pass the salt.
The correct phrase to use depends on the context of the sentence. "To be" is used as an infinitive verb phrase, while "to being" is not grammatically correct in standard English. For example, "I like to be alone" is correct, while "I like to being alone" is not.
"You are" is present tense, happening now,, while "sat" is past tense. so this sentence doesn't work. :" You are sitting writing this," although awkward is correct.
One could start a sentence with the word "while" by following it with a subject and a verb to form a dependent clause, such as "While I was at work, my phone rang."
Not technically: the compound subject uses the plural verb are."There are a spoon and a fork on the plate."But colloquially this construction, while erroneous, is very common. It could also be grammatically correct if the spoon is not on the plate (set off by a comma)."There is a spoon, and a fork on the plate." (and there is a fork on the plate)
While it is technically grammatically correct to end a sentence with "at," it is generally best to try and rephrase the sentence to avoid this. Ending a sentence with a preposition like "at" can make the sentence sound less formal or awkward in some contexts.
No: it requires an object for the verb "open". It would be correct to say something like "We must not open burning packages." Yes, if it means "We must not open (our shop, for example) while it is on fire.
It depends on the context. "He saw" is the correct past tense form, while "he see" is not grammatically correct in standard English.
Both "I appreciate you responding to my letter" and "I appreciate your responding to my letter" are correct. The first sentence uses "you" as the direct object of the verb "appreciate," while the second sentence uses "your" to indicate possession of the gerund "responding." Ultimately, both versions are grammatically acceptable.
Yes, that sentence is grammatically correct. However, it can be improved for clarity by rephrasing it as "Any information that you may have would be welcome." This version maintains the same meaning while sounding a bit more natural.