text: can anyone explain what is the part of speech of this, that, here, threre, these,those. from gramatical point. there are eight parts of speech in english. can any one explain which part of speech the words this,that,these, those, here, there belong to.  for example  "this is a boy"  you can comment on this simple sentence or any other like this.  please explain this from grammatical point of view and corroborate your point with reference.  this is surely a ten point scoring question.  serious and precise answers are welcome. sure my man, i can tell you anything you need to know, but your question is a little broad. in your example sentence, "this" is used as the subject of the verb is. the words you gave as examples can all be used as different parts of speech.   direct object-- the boy ate this/that. indirect object-- the boy gave this/that his attention. adverbs-- come here. stand there.  ... and so on. so in answer to your question, it depends on how you use any of your above listed words as they can all be used as many different parts of speech. if you have more questions, feel free to email me or im me, however tomorrow would be best as i'm sleepy. oh, and one last thing, you might get a lot of retarded grammar answers that you need to ignore. this is the correct answer!