I can adventure you can adventure he can adventure we can adventure you can adventure they can adventure
V-ing form
I can be adventuring you can be adventuring he can be adventuring we can be adventuring you can be adventuring they can be adventuring
Perfect
I can have adventured you can have adventured he can have adventured we can have adventured you can have adventured they can have adventured
V-ing perfect
I can have been adventuring you can have been adventuring he can have been adventuring we can have been adventuring you can have been adventuring they can have been adventuring
Negation
Simple form
I can't adventure you can't adventure he can't adventure we can't adventure you can't adventure they can't adventure
V-ing form
I can't be adventuring you can't be adventuring he can't be adventuring we can't be adventuring you can't be adventuring they can't be adventuring
Perfect
I can't have adventured you can't have adventured he can't have adventured we can't have adventured you can't have adventured they can't have adventured
V-ing perfect
I can't have been adventuring you can't have been adventuring he can't have been adventuring we can't have been adventuring you can't have been adventuring they can't have been adventuring
Interrogative form
Simple form
can I adventure? can you adventure? can he adventure? can we adventure? can you adventure? can they adventure?
V-ing form
can I be adventuring? can you be adventuring? can he be adventuring? can we be adventuring? can you be adventuring? can they be adventuring?
Perfect
can I have adventured? can you have adventured? can he have adventured? can we have adventured? can you have adventured? can they have adventured?
V-ing perfect
can I have been adventuring? can you have been adventuring? can he have been adventuring? can we have been adventuring? can you have been adventuring? can they have been adventuring?
Interro-negative form
Simple form
can't I adventure? can't you adventure? can't he adventure? can't we adventure? can't you adventure? can't they adventure?
V-ing form
can't I be adventuring? can't you be adventuring? can't he be adventuring? can't we be adventuring? can't you be adventuring? can't they be adventuring?
Perfect
can't I have adventured? can't you have adventured? can't he have adventured? can't we have adventured? can't you have adventured? can't they have adventured?
V-ing perfect
can't I have been adventuring? can't you have been adventuring? can't he have been adventuring? can't we have been adventuring? can't you have been adventuring? can't they have been adventuring?