This Adjective straight=away points out the person or thing concerned
The four words this, that, these and those are called demonstratives. When they are followed by some other word (especially a noun) in a noun phrase, they are demonstrative determiners. We use this and these to point to people or things near us. You use that and those to point to people or things that are farther from us.
| Singular | Plural |
|---|---|
| This | These |
| That | Those |
They are used to tell which thing or person you mean.
Examples Of Demonstrative Adjective
| I am ready to buy this house |
| I want to look at that house |
| These are the times that try men’s souls |
| That boy is intelligent |
| Those cows are white |
Modal auxiliaries Vs Primary auxiliaries
Primary auxiliaries are be, do, have. They are used to form tenses and to frame short answers.
Modal auxiliaries are will, would, may, might, shall, should, can, could, must, dare, need, used, ought. They are used to express moods.