adjectives:
Young- younger- they are younger than us - youngest - we are youngest than my mother
Small- smaller- my mother is smaller than me - smallest-
my mother is the smallest family
Difficult - Difficult - studying english is more difficult than biology- difficult - the english is the most difficult studying in my country
Cheap - cheaper - this shoes are cheaper than other shoes - cheapest - this shoes are cheapest of this mall
Thin - thinner - Valeria is thinner than Juana - thinnest - Valeria is thinnest of school
Expensive - this laptop is more expensive than my computer - expensive - this laptop is most expensive of the shop
Old - older - my sister is older than me - oldest -
my mother's jewels are the oldest family
Dirty - dirtier - my shirt is dirtier than my head - dirtiest -
the streets of my city is the country's dirtiest
Clean - cleaner- my hands is cleaner than my head - cleanest - the streets of my city is the country´s cleanest