I can bethink you can bethink he can bethink we can bethink you can bethink they can bethink
V-ing form
I can be bethinking you can be bethinking he can be bethinking we can be bethinking you can be bethinking they can be bethinking
Perfect
I can have bethought you can have bethought he can have bethought we can have bethought you can have bethought they can have bethought
V-ing perfect
I can have been bethinking you can have been bethinking he can have been bethinking we can have been bethinking you can have been bethinking they can have been bethinking
Negation
Simple form
I can't bethink you can't bethink he can't bethink we can't bethink you can't bethink they can't bethink
V-ing form
I can't be bethinking you can't be bethinking he can't be bethinking we can't be bethinking you can't be bethinking they can't be bethinking
Perfect
I can't have bethought you can't have bethought he can't have bethought we can't have bethought you can't have bethought they can't have bethought
V-ing perfect
I can't have been bethinking you can't have been bethinking he can't have been bethinking we can't have been bethinking you can't have been bethinking they can't have been bethinking
Interrogative form
Simple form
can I bethink? can you bethink? can he bethink? can we bethink? can you bethink? can they bethink?
V-ing form
can I be bethinking? can you be bethinking? can he be bethinking? can we be bethinking? can you be bethinking? can they be bethinking?
Perfect
can I have bethought? can you have bethought? can he have bethought? can we have bethought? can you have bethought? can they have bethought?
V-ing perfect
can I have been bethinking? can you have been bethinking? can he have been bethinking? can we have been bethinking? can you have been bethinking? can they have been bethinking?
Interro-negative form
Simple form
can't I bethink? can't you bethink? can't he bethink? can't we bethink? can't you bethink? can't they bethink?
V-ing form
can't I be bethinking? can't you be bethinking? can't he be bethinking? can't we be bethinking? can't you be bethinking? can't they be bethinking?
Perfect
can't I have bethought? can't you have bethought? can't he have bethought? can't we have bethought? can't you have bethought? can't they have bethought?
V-ing perfect
can't I have been bethinking? can't you have been bethinking? can't he have been bethinking? can't we have been bethinking? can't you have been bethinking? can't they have been bethinking?