could gelatinize
Regular verb: gelatinize - gelatinized- gelatinized

Affirmation 	
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I could gelatinize
you could gelatinize
he could gelatinize
we could gelatinize
you could gelatinize
they could gelatinize 	I could be gelatinizing
you could be gelatinizing
he could be gelatinizing
we could be gelatinizing
you could be gelatinizing
they could be gelatinizing	I could have gelatinized
you could have gelatinized
he could have gelatinized
we could have gelatinized
you could have gelatinized
they could have gelatinized	I could have been gelatinizing
you could have been gelatinizing
he could have been gelatinizing
we could have been gelatinizing
you could have been gelatinizing
they could have been gelatinizing	

Negation 	
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I couldn't gelatinize
you couldn't gelatinize
he couldn't gelatinize
we couldn't gelatinize
you couldn't gelatinize
they couldn't gelatinize 	I couldn't be gelatinizing
you couldn't be gelatinizing
he couldn't be gelatinizing
we couldn't be gelatinizing
you couldn't be gelatinizing
they couldn't be gelatinizing	I couldn't have gelatinized
you couldn't have gelatinized
he couldn't have gelatinized
we couldn't have gelatinized
you couldn't have gelatinized
they couldn't have gelatinized	I couldn't have been gelatinizing
you couldn't have been gelatinizing
he couldn't have been gelatinizing
we couldn't have been gelatinizing
you couldn't have been gelatinizing
they couldn't have been gelatinizing	

Interrogative form 	
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could I gelatinize?
could you gelatinize?
could he gelatinize?
could we gelatinize?
could you gelatinize?
could they gelatinize? 	could I be gelatinizing?
could you be gelatinizing?
could he be gelatinizing?
could we be gelatinizing?
could you be gelatinizing?
could they be gelatinizing? 	could I have gelatinized?
could you have gelatinized?
could he have gelatinized?
could we have gelatinized?
could you have gelatinized?
could they have gelatinized? 	could I have been gelatinizing?
could you have been gelatinizing?
could he have been gelatinizing?
could we have been gelatinizing?
could you have been gelatinizing?
could they have been gelatinizing? 	

Interro-negative form 	
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couldn't I gelatinize?
couldn't you gelatinize?
couldn't he gelatinize?
couldn't we gelatinize?
couldn't you gelatinize?
couldn't they gelatinize? 	couldn't I be gelatinizing?
couldn't you be gelatinizing?
couldn't he be gelatinizing?
couldn't we be gelatinizing?
couldn't you be gelatinizing?
couldn't they be gelatinizing? 	couldn't I have gelatinized?
couldn't you have gelatinized?
couldn't he have gelatinized?
couldn't we have gelatinized?
couldn't you have gelatinized?
couldn't they have gelatinized? 	couldn't I have been gelatinizing?
couldn't you have been gelatinizing?
couldn't he have been gelatinizing?
couldn't we have been gelatinizing?
couldn't you have been gelatinizing?
couldn't they have been gelatinizing?