There, their or they're

Lots of people often get confused about there, their and they're. These three words sound the same but have different meanings and spellings.  
there, their, they're

Expect, Hope or Wait?

These three words, Expect, Hope and Wait, are often confusing for learners of English. But they all have different meanings. 
Expect, Hope, Wait

This, that, these and those

Demonstratives: this that these those

This, that, these and those are demonstrative pronouns. We use them to point to specific people or things. Demonstrative pronouns are used in place of a noun. We can use same words as demonstrative adjectives. Demonstrative adjectives are used before a noun.

Emigrate vs Immigrate

The verbs emigratewith an e, and immigrate, with an i, are often confused. These two words, emigrate and immigrate, have the general meaning 'to move from one country to another'. They also sound very similar, but there is a difference in meaning between these two verbs. 
Emigrate or Immigrate

Question words

Questions words are used in asking questions. These words in English are also known as wh-words because they include the same two letters –Wh. The question words are: what, when, where, who, whom, which, whose, why and how 
Question words

How to use either/or and neither/nor

The pairs either...or and neither...nor are correlative conjunctions. They connect words, phrases or clauses that are grammatically similar.   
Either/or Neither/nor

Ad or Add?

A lot of people often get confused about add and ad. These two words have same pronunciations, but they are spelled differently (add with two D's) and have different meanings.  
Ad vs Add