Modal verbs about past (Модальные глаголы в прошедшем времени)
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			| № | 
			Present form                          | 
			Past form                                   | 
			Example with past form              | 
		 
		
			| 1 | 
			can | 
			Could | 
			(general abilities in the past) | 
		 
		
			| 2 | 
			Be able to | 
			Was able to | 
			(specific occasion in the past) | 
		 
		
			| 3 | 
			may | 
			might | 
			  | 
		 
		
			| 4 | 
			Be allowed to | 
			Was allowed to | 
			  | 
		 
		
			| 5 | 
			must | 
			Had to | 
			  | 
		 
		
			| 6 | 
			Have to | 
			Had to | 
			  | 
		 
		
			| 7 | 
			will | 
			would | 
			He said he... | 
		 
		
			| 8 | 
			shall | 
			should | 
			He said he... | 
		 
		
			| 9 | 
			Need | 
			Need have V3-ed | 
			(But it happened) | 
		 
		
			| 10 | 
			should | 
			Should have V3-ed | 
			(But it happened) | 
		 
	
 
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