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 cannot cultivate you cannot cultivate he cannot cultivate we cannot cultivate you cannot cultivate they cannot cultivate
V-ing form
I cannot be cultivating you cannot be cultivating he cannot be cultivating we cannot be cultivating you cannot be cultivating they cannot be cultivating
Perfect
I cannot have cultivated you cannot have cultivated he cannot have cultivated we cannot have cultivated you cannot have cultivated they cannot have cultivated
V-ing perfect
I cannot have been cultivating you cannot have been cultivating he cannot have been cultivating we cannot have been cultivating you cannot have been cultivating they cannot 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 I not cultivate? can you not cultivate? can he not cultivate? can we not cultivate? can you not cultivate? can they not cultivate?
V-ing form
can I not be cultivating? can you not be cultivating? can he not be cultivating? can we not be cultivating? can you not be cultivating? can they not be cultivating?
Perfect
can I not have cultivated? can you not have cultivated? can he not have cultivated? can we not have cultivated? can you not have cultivated? can they not have cultivated?
V-ing perfect
can I not have been cultivating? can you not have been cultivating? can he not have been cultivating? can we not have been cultivating? can you not have been cultivating? can they not have been cultivating?