What is the difference between the verb "annoyed" and "plagued" ??

As verbs the difference between annoy and plague is that annoy is to disturb or irritate, especially by continued or repeated acts; to bother with unpleasant deeds while plague is to harass, pester or annoy someone persistently or incessantly.

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

lol thats so corny but its funny