You use the word "are" when the subject it is referring to is plural. (Ex: The books ARE all green.) You use the word "is" when the subject is it referring to is singular. (Ex: The book IS green.)
Use "an" if the word following it starts with a vowel. ex. I have an apple. Use "a" when the next word starts with a consonant. ex. I have a horse. Hour is an exception though. ex. Wait an hour before swimming, after eating.
Ex: Prestidigitation is favorite word.
Ex. I wouldn't ask her.
Ex: I will devour this turkey.
Ex: The bills are due on Thursday
No, the word 'ex' is an informal word (slang) for ex-wife, ex-girlfirend, ex-husband, or ex-boyfriend. As an informal word, ex is a noun (not a pronoun), a word for a person.
Ex: He/She tried to, but he/she couldn't (ENTER WORD) it.
Arnold Schwarzenegger is just one more ex-governor of California. The ex-governor is pursuing his former career as an actor.
Ex. What kind of font do you want to use for that writing. You would use it as a noun in a sentencde
it means to grab something. Ex. Snag on that football.
You use it to show the effect of causes. EX: I laughed at the funeral therefore I was kicked out. The easiest way to figure if it's the right word is to replace it with "for that reason" EX: I laughed at the funeral and for that reason I was kicked out. The use of the word therefore will make you seem pompous though so try to not use it unless your paper fits that demographic.