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Advanced English Grammar
Can has only the simple present or the simple past tense (could) of the verb. All other tense forms are made with "to be able to" as shown below.
Infinitive
|
to be able to
|
Present
|
can / is able to
|
Past
|
could / was able to
|
Future
|
will be able to / can
|
Present Perfect
|
have been able to
|
Past Perfect
|
had been able to
|
Future Perfect
|
will have been able to
|
Present Conditional
|
would be able to
|
Past Conditional
|
would have been able to
|
Exercises:
Modal Verb Can Exercise
Fill in the blanks with can or can't and then check your answers below.
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