SUMMARY CHART OF MODALS AND SIMILAR EXPRESSIONS

AUXILIARY	USES	SENTENCES
Must	1.      Strong necessity	We must start to look at the people around us, and open your eyes
Will	1.      Willingness	The program is a power outage will reduce demand for electricity but can be very detrimental to businesses.
Be to	1.      Strong expectation	To be used by older people
May	1.      Formal permission	They may wish to take credit for their crisis-fighting skills or relax
	Less than 50 % certainty	may have to build an urban complex itself, including housing, schools, hospitals, and possibly recreational facilities to attract many foreign workers.
Should	1.      Advisability	Mr.Monti should have pushed, through crucial changes to the labor market earlier
	90 % Certainty	Should have cracked down earlier with budget to bring the goverments finances into balance
Can	Ability/possibility	As severe budget squeezes can crush an economy and make it even harder to raise taxes and cut deficits
	Impossibility	that can not be transferred and environmental differences (eg, climate)