WE
USE
CAN + INFINITIVE
BE ALLOWED TO + INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
PERMITTED IN THE PRESENT
|
WE
USE
CAN’T + INFINITIVE
NOT BE ALLOWED TO +
INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
NOT PERMITTED IN THE PRESENT
|
WE
USE
+
INFINITIVE
HAS TO
|
TO TALK ABOUT THINGS THAT ARE
NECESSARY TO DO
|
WE
USE
DON’T
HAVE TO + INFINITIVE
DOESN’T
|
TO TALK ABOUT THINGS THAT ARE
NOT NECESSARY TO DO
|
WE
USE
COULD
+ INFINITIVE
WAS / WERE ALLOWED
TO + INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
PERMITTED IN THE PAST
|
WE
USE
COULDN’T
+ INFINITIVE
WASN’T /
WEREN’T ALLOWED TO + INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
NOT PERMITTED IN THE PAST
|
WE
USE
HAD TO
+ INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
NECESSARY TO DO IN THE PAST
|
WE
USE
DIDN’T HAVE TO + INFINITIVE
|
TO TALK ABOUT THINGS THAT ARE
NOT NECESSARY TO DO IN THE PAST
|
Wednesday, 12 September 2012
PERMISSION AND OBLIGATION
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