The difference between suffixes and prefixes in English

Supply question tags to the following statements:

(i) Let's do this work together,..... ?

(ii) She was a little tired........?

(iii) He couldn't go for walk.............?

(iv) She is not your daughter...........?

(v) Switch off the fan, ...........?

Write a short note on negation in English. 

Identify the number of syllables in the following words and mark the stress:

(1) decent

(1) balloon

(m) government

(iv) atom

(v) calculate

Identify the number of syllables in the following words and mark the stress: 
(i) decent
(ii) balloon
(iii) government
(iv) atom
(v) calculate

Separate the syllables in the following words.

(i) artificial

(ii)courageous

(iii) competition

(iv) frequent

(v)protest

Difference between English as a foreign language and as a second language