Yes, 'for free', is grammatically correct.
Yes
yeah it sounds grammatically correct
The phrase "had already left" is grammatically correct. The phrase "had already been gone" is not grammatically correct.
yes, it is
No. The term should be "These."
Yes. It is a noun phrase.
Yes, the phrase 'what they're doing' is grammatically correct. For example: What they're doing is wrong.
Yes, it is grammatically correct. "Part and parcel" is a phrase that originated as a legal term in the fifteenth century. It means an essential or integral part.
No, it's not grammatically correct. Try this: She wished she had ran instead of marrying him.
The phrase 'at the discretion of' is grammatically correct. It means that a particular person has the authority to make a decision.
The phrase "c'est Grace" is grammatically correct if Grace is a person. If 'grace (Ã ) ' is used int the sense of thanks (to), then it lacks a complement.