Item 6

Modal verb + be  /F1

[S] modal verb + be / ordinary verb F1

can /could

may /might

shall /should     

will / would

must /have to

ought to

[He ] can swim very well.

                       Adv.    Adv.

[S] can +F1 + adv. of degree+ adv. of manner

The  adverb of degree modifies an adv. of manner.

He can be /a professional swimmer/.

                      /A noun phrase/

He may be a professional swimmer.

He might be a professional swimmer.

I shall be there before 10am next Tuesday.

             Adv. of place

Lucy will be 21 years old next month.

Tom should be more attentive in class.

                      Adv.   adj.

The adverb of degree ‘more’ modifies the adjective, ‘attentive’.

He should pay more attention in class.

You must work harder.

You must be careful when you cross the road.

You have to be careful when you cross the road.

You ought to obey (the school rules and regulations).

[S] ought to F1vt…………..

You ought to be obedient to the school rules and regulations.

[S] ought to be + adj………..

Be + a noun phrase/ adjective / adv. of place