I can cultivate you can cultivate he can cultivate we can cultivate you can cultivate they can cultivate
V-ing form
I can be cultivating you can be cultivating he can be cultivating we can be cultivating you can be cultivating they can be cultivating
Perfect
I can have cultivated you can have cultivated he can have cultivated we can have cultivated you can have cultivated they can have cultivated
V-ing perfect
I can have been cultivating you can have been cultivating he can have been cultivating we can have been cultivating you can have been cultivating they can have been cultivating
Negation
Simple form
I can't cultivate you can't cultivate he can't cultivate we can't cultivate you can't cultivate they can't cultivate
V-ing form
I can't be cultivating you can't be cultivating he can't be cultivating we can't be cultivating you can't be cultivating they can't be cultivating
Perfect
I can't have cultivated you can't have cultivated he can't have cultivated we can't have cultivated you can't have cultivated they can't have cultivated
V-ing perfect
I can't have been cultivating you can't have been cultivating he can't have been cultivating we can't have been cultivating you can't have been cultivating they can't have been cultivating
Interrogative form
Simple form
can I cultivate? can you cultivate? can he cultivate? can we cultivate? can you cultivate? can they cultivate?
V-ing form
can I be cultivating? can you be cultivating? can he be cultivating? can we be cultivating? can you be cultivating? can they be cultivating?
Perfect
can I have cultivated? can you have cultivated? can he have cultivated? can we have cultivated? can you have cultivated? can they have cultivated?
V-ing perfect
can I have been cultivating? can you have been cultivating? can he have been cultivating? can we have been cultivating? can you have been cultivating? can they have been cultivating?
Interro-negative form
Simple form
can't I cultivate? can't you cultivate? can't he cultivate? can't we cultivate? can't you cultivate? can't they cultivate?
V-ing form
can't I be cultivating? can't you be cultivating? can't he be cultivating? can't we be cultivating? can't you be cultivating? can't they be cultivating?
Perfect
can't I have cultivated? can't you have cultivated? can't he have cultivated? can't we have cultivated? can't you have cultivated? can't they have cultivated?
V-ing perfect
can't I have been cultivating? can't you have been cultivating? can't he have been cultivating? can't we have been cultivating? can't you have been cultivating? can't they have been cultivating?