English verb conjugation CAN THUNDER
Regular verb: thunder - thundered - thundered
Affirmation
Simple form
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it can thunder
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V-ing form
--
it can be thundering
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Perfect
--
it can have thundered
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V-ing perfect
--
it can have been thundering
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Negation
Simple form
--
it cannot thunder
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V-ing form
--
it cannot be thundering
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Perfect
--
it cannot have thundered
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V-ing perfect
--
it cannot have been thundering
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Interrogative form
Simple form
--
can it thunder?
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V-ing form
--
can it be thundering?
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Perfect
--
can it have thundered?
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V-ing perfect
--
can it have been thundering?
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Interro-negative form
Simple form
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can it not thunder?
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V-ing form
--
can it not be thundering?
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Perfect
--
can it not have thundered?
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V-ing perfect
--
can it not have been thundering?
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