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Modal Verbs - Ability

Thursday, October 30, 2008


Printable worksheet


MODAL VERBS - ABILITY
Modals are auxiliary verbs witch are used with a simple infinitive to Express the speaker’s attitude as well as a degree of certainty or uncertainly. Each modal verb has more than one use. When we want to say that someone has ability to do something we use can but, as can only has two forms- can for the present and could for the past- be able to supplies the missing parts of can it is also an alternative form for present and past.
Uses
a) Both can and am/is/are able to may be used to Express ability in the present although can is the more usual form.

b) When we refer to past ability we use could or was/were able to whereas we only use was/were able to when we want to say that somebody managed to do something in a particular situation in the past. However, in the negative we may use couldn’t to talk about a particular action not successfully completed.


c) We normally use can and could with verbs of senses instead of the simple present.

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2 Comments:

Anonymous said...

Thank you so much for well prepared and usable worksheets.

Johan
Rep. of Korea

7 May 2009 at 09:58
Anonymous said...

I have no idea how to thank u for everything.. : )

20 November 2009 at 02:17

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