I can terraform you can terraform he can terraform we can terraform you can terraform they can terraform
Forme en V-ing
I can be terraforming you can be terraforming he can be terraforming we can be terraforming you can be terraforming they can be terraforming
Perfect
I can have terraformed you can have terraformed he can have terraformed we can have terraformed you can have terraformed they can have terraformed
Perfect en V-ing
I can have been terraforming you can have been terraforming he can have been terraforming we can have been terraforming you can have been terraforming they can have been terraforming
Négation
Forme simple
I can't terraform you can't terraform he can't terraform we can't terraform you can't terraform they can't terraform
Forme en V-ing
I can't be terraforming you can't be terraforming he can't be terraforming we can't be terraforming you can't be terraforming they can't be terraforming
Perfect
I can't have terraformed you can't have terraformed he can't have terraformed we can't have terraformed you can't have terraformed they can't have terraformed
Perfect en V-ing
I can't have been terraforming you can't have been terraforming he can't have been terraforming we can't have been terraforming you can't have been terraforming they can't have been terraforming
Forme interrogative
Forme simple
can I terraform? can you terraform? can he terraform? can we terraform? can you terraform? can they terraform?
Forme en V-ing
can I be terraforming? can you be terraforming? can he be terraforming? can we be terraforming? can you be terraforming? can they be terraforming?
Perfect
can I have terraformed? can you have terraformed? can he have terraformed? can we have terraformed? can you have terraformed? can they have terraformed?
Perfect en V-ing
can I have been terraforming? can you have been terraforming? can he have been terraforming? can we have been terraforming? can you have been terraforming? can they have been terraforming?
Forme interro-négative
Forme simple
can't I terraform? can't you terraform? can't he terraform? can't we terraform? can't you terraform? can't they terraform?
Forme en V-ing
can't I be terraforming? can't you be terraforming? can't he be terraforming? can't we be terraforming? can't you be terraforming? can't they be terraforming?
Perfect
can't I have terraformed? can't you have terraformed? can't he have terraformed? can't we have terraformed? can't you have terraformed? can't they have terraformed?
Perfect en V-ing
can't I have been terraforming? can't you have been terraforming? can't he have been terraforming? can't we have been terraforming? can't you have been terraforming? can't they have been terraforming?