could gasify
Verbe régulier : gasify - gasified- gasified

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could gasify
you could gasify
he could gasify
we could gasify
you could gasify
they could gasify 	I could be gasifying
you could be gasifying
he could be gasifying
we could be gasifying
you could be gasifying
they could be gasifying	I could have gasified
you could have gasified
he could have gasified
we could have gasified
you could have gasified
they could have gasified	I could have been gasifying
you could have been gasifying
he could have been gasifying
we could have been gasifying
you could have been gasifying
they could have been gasifying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't gasify
you couldn't gasify
he couldn't gasify
we couldn't gasify
you couldn't gasify
they couldn't gasify 	I couldn't be gasifying
you couldn't be gasifying
he couldn't be gasifying
we couldn't be gasifying
you couldn't be gasifying
they couldn't be gasifying	I couldn't have gasified
you couldn't have gasified
he couldn't have gasified
we couldn't have gasified
you couldn't have gasified
they couldn't have gasified	I couldn't have been gasifying
you couldn't have been gasifying
he couldn't have been gasifying
we couldn't have been gasifying
you couldn't have been gasifying
they couldn't have been gasifying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I gasify?
could you gasify?
could he gasify?
could we gasify?
could you gasify?
could they gasify? 	could I be gasifying?
could you be gasifying?
could he be gasifying?
could we be gasifying?
could you be gasifying?
could they be gasifying? 	could I have gasified?
could you have gasified?
could he have gasified?
could we have gasified?
could you have gasified?
could they have gasified? 	could I have been gasifying?
could you have been gasifying?
could he have been gasifying?
could we have been gasifying?
could you have been gasifying?
could they have been gasifying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I gasify?
couldn't you gasify?
couldn't he gasify?
couldn't we gasify?
couldn't you gasify?
couldn't they gasify? 	couldn't I be gasifying?
couldn't you be gasifying?
couldn't he be gasifying?
couldn't we be gasifying?
couldn't you be gasifying?
couldn't they be gasifying? 	couldn't I have gasified?
couldn't you have gasified?
couldn't he have gasified?
couldn't we have gasified?
couldn't you have gasified?
couldn't they have gasified? 	couldn't I have been gasifying?
couldn't you have been gasifying?
couldn't he have been gasifying?
couldn't we have been gasifying?
couldn't you have been gasifying?
couldn't they have been gasifying?