Arrived for her is correct.
The correct phrase is "arrived for her." In this case, "her" is the objective pronoun that should be used after the preposition "for."
When he arrived I was ready to go is correct
No, the correct phrasing would be "When 'you' arrived, she had already left." By adding the comma after "arrived," the sentence is clearer and reads more smoothly.
No, "Is she and you arrived at the airport on time" is not correct. It should be "Did she and you arrive at the airport on time?" or "Did she and you both arrive at the airport on time?" for proper subject-verb agreement.
The correct phrase is "just arrived from school," as it indicates that the action of arriving has recently taken place.
"He should have" is the correct grammar construction. "Should" is followed by the base form of the verb, which in this case is "have." "He should have arrived by now."
When he arrived I was ready to go is correct
"When he arrived I was ready to go" and "when he arrived I was ready to leave" are both correct
You should say "arrived exactly at" instead of "exactly arrived on" and include a subject for the verb. The rest is correct.
No, the correct phrasing would be "When 'you' arrived, she had already left." By adding the comma after "arrived," the sentence is clearer and reads more smoothly.
No, there is no subject. Who arrived?"Bob and Sara arrived exactly at their cut off time.""They arrived exactly at their cut off time."Arrived exactly at their cut off time is not a correct grammar.
No, "Is she and you arrived at the airport on time" is not correct. It should be "Did she and you arrive at the airport on time?" or "Did she and you both arrive at the airport on time?" for proper subject-verb agreement.
Arrived at two minutes before their cut off time is not a correct grammar.Is arrived at two minutes before their cut off time is not a correct grammar.
Better = 'Both of you arrived at the airport..."
Arrived 2 minutes before their cut off time is not a correct grammar.
it's "He arrived early at school", although i think the other one is correct too
The sentence "I arrived exactly at their cut off time" is not correct grammar because of the wrong diction used.
Arrived exactly at their cut off time is not correct grammar. It is a sentence fragment.A grammatically correct sentence would be, "They [or "The widgets we needed to complete the oscillating framizam" or whatever] arrived exactly at their cutoff [not cut off] time."