Modals for speculation

Which modal verb is used when you are totally sure something is true?

• MAY

• MUST

• CAN'T

• COULD

Which modal verbs are used when you are somehow sure that something is true?

• MAY

• MUST

• CAN'T

• MIGHT

Which modal verbs are used when you are totally sure that something is not true?

• MUSTN'T

• CAN'T

• COULDN'T

• MUST

What is a speculation?

(a)  

Which speculation must have a verb in participle in the structure?

• Speculations about the past

• Speculations about the present

• Speculations about the future

The correct structure for speculations about the past is:

(a)  

How can you differentiate speculations about the present from speculations about the future?

• The context

• Expressions used

• The modal verbs in present are different from the future ones

• The structure

Is it possible to use all the modal verbs for speculation in past present and future, in passive and active voice?

• YES

• NO

The modals for speculation about the present are:

• MUST, CAN, MAY, MIGHT, COULD

• WILL, CAN'T, MAY, MIGHT, COULD

• MUST, CAN'T, MAY, MIGHT, COULD

• CAN, CAN'T, MAY, MIGHT, COULD

The only modal for speculation that is used exclusively for the future is:

• BE GOING TO

• MIGHT

• MUST

• WILL