Correct: The mountains are covered with/in snow.
Incorrect: The mountains are covered by snow.
Correct: There is no harm in visiting her now.
Incorrect: There is no harm to visit her now.
Correct: I look forward to seeing him soon.
Incorrect: I look forward to see him soon.
Correct: Joe has not come either.
Incorrect: Joe has not come too.
Correct: It is a secret between you and me.
Incorrect: It is a secret between you and I.
Correct:It’s not good getting angry.
Incorrect: It is not good to get angry.
Correct: Please excuse my being so late.
Incorrect: Please excuse me to be so late.
Correct: I have written the letter in ink.
Incorrect: I have written the letter with ink
