"Who's" is short for "who is" or "who has". The word "her's" doesn't exist.

“Who” is a subjective pronoun (like "he," and "she"). whereas “whom” is an objective pronoun (like "him," and "her").

"That" is a restrictive pronoun, whereas "which" introduces a relative clause, allowing for non-essential qualifiers.

"You're" means "you are". If you are anxious about something, you are dreading it, rather than looking forward to it.

"Literally" means "exactly". It's unlikely that you know what every single person from you school is up to right now. "Affect" is usually a verb and "effect" is usually a noun. To affect something is to cause an effect.

"They're" means "they are". "Their" indicates possession. "There" indicates the existence of something.

"Because" refers to causation, whereas "since" refers to time. "Looses" comes from "loose", as in "loose-fitting clothing".

"Farther" implies a distance you can measure. "Further" refers to abstract lengths.

"Continual" means something that is always occurring, with lapses of time in between. "Continuous" means something that is on-going, without any gaps.

"Jealous" implies a fear of rivalry, whereas "envy" implies longing for something someone else has.

"Whether" expresses a decision involving two or more options. "If" implies that there are no alternatives. "Dye" refers to the process of colouring, whereas "die" means not living anymore.

To compliment is to say nice things about something. To complement is to offset. A "dessert" is a sweet dish, whereas a "desert" is landscape of very dry land.

"Fewer" refers to things you can quantify, whereas "less" refers to ambiguous amounts of something,

"Laid" requires a direct subject and one or more objects. "Lay" does not require an object.

"Could of" isn't a thing. It's always "could have". "Principal" is the main thing, whereas "principle" is a belief.

If you're disinterested in something, you feel ambivalent towards it. If you're uninterested in something, you actively do not want to know about it.

"It's" means "it is". Taking wine involves moving wine away from the subject, whereas bringing wine involves moving wine towards the subject.

You always refer to the other person first. In this case, "I" forms the object of the verb (along with Jonathan), so it is used.

"May" implies a possibility, whereas "might" implies uncertainty.