I can blob you can blob he can blob we can blob you can blob they can blob
V-ing form
I can be blobing you can be blobing he can be blobing we can be blobing you can be blobing they can be blobing
Perfect
I can have blobed you can have blobed he can have blobed we can have blobed you can have blobed they can have blobed
V-ing perfect
I can have been blobing you can have been blobing he can have been blobing we can have been blobing you can have been blobing they can have been blobing
Negation
Simple form
I can't blob you can't blob he can't blob we can't blob you can't blob they can't blob
V-ing form
I can't be blobing you can't be blobing he can't be blobing we can't be blobing you can't be blobing they can't be blobing
Perfect
I can't have blobed you can't have blobed he can't have blobed we can't have blobed you can't have blobed they can't have blobed
V-ing perfect
I can't have been blobing you can't have been blobing he can't have been blobing we can't have been blobing you can't have been blobing they can't have been blobing
Interrogative form
Simple form
can I blob? can you blob? can he blob? can we blob? can you blob? can they blob?
V-ing form
can I be blobing? can you be blobing? can he be blobing? can we be blobing? can you be blobing? can they be blobing?
Perfect
can I have blobed? can you have blobed? can he have blobed? can we have blobed? can you have blobed? can they have blobed?
V-ing perfect
can I have been blobing? can you have been blobing? can he have been blobing? can we have been blobing? can you have been blobing? can they have been blobing?
Interro-negative form
Simple form
can't I blob? can't you blob? can't he blob? can't we blob? can't you blob? can't they blob?
V-ing form
can't I be blobing? can't you be blobing? can't he be blobing? can't we be blobing? can't you be blobing? can't they be blobing?
Perfect
can't I have blobed? can't you have blobed? can't he have blobed? can't we have blobed? can't you have blobed? can't they have blobed?
V-ing perfect
can't I have been blobing? can't you have been blobing? can't he have been blobing? can't we have been blobing? can't you have been blobing? can't they have been blobing?