Yes it is.
The meaning is ambiguous as it could be his childhood or my childhood (or, probably, both).
Yes, the sentence "I have been in love with him since childhood" is grammatically correct. It uses the present perfect tense to express an action that started in the past and continues into the present.
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
No, the sentence "Is this sentence you have sent no messages from the morning?" is not grammatically correct. It should be revised to: "Have you not sent any messages since this morning?"
No, the correct phrasing would be "It has been 5 years since I have known him."
No, the sentence is not correct grammatically. It should be "Mario and I went to the market" since "I" is the subject pronoun used when referring to oneself as the subject of the sentence.
No, the correct form should be "Thanks to everyone who has already responded." since "everyone" is considered singular.
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
"I said to him" is a grammatically correct sentence fragment since "said" is still waiting for its direct object. You said what to him? "I said "to him". would be a grammatically correct sentence.
No, the correct phrasing should be "for the last 10 years" to indicate a period of time that has lasted up to the present moment.
No, the sentence "Is this sentence you have sent no messages from the morning?" is not grammatically correct. It should be revised to: "Have you not sent any messages since this morning?"
No, the correct phrasing would be "It has been 5 years since I have known him."
In some varieties, the past tense form is used as a past participle, in place of the different past participle which is used in standard varieties. So this example may be used in some dialects, but it is not grammatical in standard English.
No, the sentence is not correct grammatically. It should be "Mario and I went to the market" since "I" is the subject pronoun used when referring to oneself as the subject of the sentence.
It has been 5 years since you knew him.Read more: It_has_been_5_years_since_you_knew_him._Is_this_sentence_grammatically_correct
"Go!" is the shortest complete sentence, since an imperative (an order, such as "Go!" ) can stand alone in English without a subject. In this kind of sentence, the pronoun "you" is the implied subject.
No. Since "circumspect" is an adjective, "I appreciate your circumspect" is about as grammatically correct as "I appreciate your clean". Saying "I appreciate your circumspect behavior" is correct, similar to "I appreciate your clean appearance".
The correct sentence would be:This is Luke's book.If Luke ended in an s, the apostrophe would be after the s ; since it doesn't, an apostrophe and then an s must be added for possession.Example: Jesus' disciples, John's disciples....
I'm not completely sure but I think No, you would not say most like since it is talking about someone else's team.