can thunder
Verbo regular: thunder - thundered- thundered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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it can thunder
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-
- 	-
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it can be thundering
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-
- 	-
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it can have thundered
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-
- 	-
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it can have been thundering
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-
- 	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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it can't thunder
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-
- 	-
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it can't be thundering
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-
- 	-
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it can't have thundered
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-
- 	-
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it can't have been thundering
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Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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can it thunder?
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-
- 	-
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can it be thundering?
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-
- 	-
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can it have thundered?
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-
- 	-
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can it have been thundering?
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-
- 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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can't it thunder?
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-
- 	-
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can't it be thundering?
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-
- 	-
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can't it have thundered?
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-
- 	-
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can't it have been thundering?
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