Modal verbs can express ability, obligation, permission, and request. They can also express probability, or how certain a situation is.
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Created by Ana Jiménez
over 4 years ago
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Created by Ana Jiménez
over 4 years ago
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Modal auxiliary verbs can express:
ability, obligation, permission, request, probability or how certain a situation is
Must= Logically probable= He MUST be exhausted. He hasn´t slept for 24 hours!
Can't= Logically improbable= She can't have ten-year-old daughter! She's only 24!
*Couldn't RARELY is used in this context.
Might not= I MIGHT NOT to be able to come tonight.
May not= They MAY NOT know where we are.
The second one is:
ASKING ABOUT POSIBILITIES.
Do you think= DO YOU THINK she's married?
Must/can't/may/might/could + have + pp
Must+have+pp= He MUST HAVE BEEN exhausted
Can't+have+pp= She CAN'T HAVE TOLD him about us yet
