By Uncountable nouns, Plural words

Hi, I have not-so-easy times using the word 'types' in front of a countable noun and an uncountable noun. There are two types of face: optimistic and pessimistic. -- I have difficulty with using the word 'types' with a countable noun. I think 'face' is used...

Hi, Sometimes I see phrasal cases where adjectives in front of a noun seem to warrant it to be plural but ends up being the case of shared adjectives. Is this one? Can you help me to clearly distinguish similar situations? both singular and plural tense -- When should 'tense' be 'tenses'? ...

Hi, I was looking at my dictionary to look up the word "writing" and it said it is an uncountable noun. OK, but it has a plural form "writings" right beside the word "writing." I presume the plural word "writings' is an uncountable too like its singular form "writing." Can you help me to...