Memory Game SuperlativesOnline version Expressions such as by far, relative clauses and infinitive to add infromation by Ailyn Chavez ... the most difficult class of all. .. a part of the sentence that adds infromation. ...a relative clause ... an infinite phrase ... by far A relative clause is... Instead of using "more" for superlatives we use.... we add more infromation with... Usually relative clases begin with the words... English is by far... ...-est. The ending for superlative adjectives is... when, which, that, whose,etc. We can identify an infinite phrase with the word.... we add more emphasis using... We can express big margin using... ... describe something that is at the upper or lower level ...to .. "the most" Superlatives are used to...