I can caddy you can caddy he can caddy we can caddy you can caddy they can caddy
V-ing form
I can be caddying you can be caddying he can be caddying we can be caddying you can be caddying they can be caddying
Perfect
I can have caddied you can have caddied he can have caddied we can have caddied you can have caddied they can have caddied
V-ing perfect
I can have been caddying you can have been caddying he can have been caddying we can have been caddying you can have been caddying they can have been caddying
Negation
Simple form
I can't caddy you can't caddy he can't caddy we can't caddy you can't caddy they can't caddy
V-ing form
I can't be caddying you can't be caddying he can't be caddying we can't be caddying you can't be caddying they can't be caddying
Perfect
I can't have caddied you can't have caddied he can't have caddied we can't have caddied you can't have caddied they can't have caddied
V-ing perfect
I can't have been caddying you can't have been caddying he can't have been caddying we can't have been caddying you can't have been caddying they can't have been caddying
Interrogative form
Simple form
can I caddy? can you caddy? can he caddy? can we caddy? can you caddy? can they caddy?
V-ing form
can I be caddying? can you be caddying? can he be caddying? can we be caddying? can you be caddying? can they be caddying?
Perfect
can I have caddied? can you have caddied? can he have caddied? can we have caddied? can you have caddied? can they have caddied?
V-ing perfect
can I have been caddying? can you have been caddying? can he have been caddying? can we have been caddying? can you have been caddying? can they have been caddying?
Interro-negative form
Simple form
can't I caddy? can't you caddy? can't he caddy? can't we caddy? can't you caddy? can't they caddy?
V-ing form
can't I be caddying? can't you be caddying? can't he be caddying? can't we be caddying? can't you be caddying? can't they be caddying?
Perfect
can't I have caddied? can't you have caddied? can't he have caddied? can't we have caddied? can't you have caddied? can't they have caddied?
V-ing perfect
can't I have been caddying? can't you have been caddying? can't he have been caddying? can't we have been caddying? can't you have been caddying? can't they have been caddying?