I can aerate you can aerate he can aerate we can aerate you can aerate they can aerate
V-ing form
I can be aerating you can be aerating he can be aerating we can be aerating you can be aerating they can be aerating
Perfect
I can have aerated you can have aerated he can have aerated we can have aerated you can have aerated they can have aerated
V-ing perfect
I can have been aerating you can have been aerating he can have been aerating we can have been aerating you can have been aerating they can have been aerating
Negation
Simple form
I cannot aerate you cannot aerate he cannot aerate we cannot aerate you cannot aerate they cannot aerate
V-ing form
I cannot be aerating you cannot be aerating he cannot be aerating we cannot be aerating you cannot be aerating they cannot be aerating
Perfect
I cannot have aerated you cannot have aerated he cannot have aerated we cannot have aerated you cannot have aerated they cannot have aerated
V-ing perfect
I cannot have been aerating you cannot have been aerating he cannot have been aerating we cannot have been aerating you cannot have been aerating they cannot have been aerating
Interrogative form
Simple form
can I aerate? can you aerate? can he aerate? can we aerate? can you aerate? can they aerate?
V-ing form
can I be aerating? can you be aerating? can he be aerating? can we be aerating? can you be aerating? can they be aerating?
Perfect
can I have aerated? can you have aerated? can he have aerated? can we have aerated? can you have aerated? can they have aerated?
V-ing perfect
can I have been aerating? can you have been aerating? can he have been aerating? can we have been aerating? can you have been aerating? can they have been aerating?
Interro-negative form
Simple form
can I not aerate? can you not aerate? can he not aerate? can we not aerate? can you not aerate? can they not aerate?
V-ing form
can I not be aerating? can you not be aerating? can he not be aerating? can we not be aerating? can you not be aerating? can they not be aerating?
Perfect
can I not have aerated? can you not have aerated? can he not have aerated? can we not have aerated? can you not have aerated? can they not have aerated?
V-ing perfect
can I not have been aerating? can you not have been aerating? can he not have been aerating? can we not have been aerating? can you not have been aerating? can they not have been aerating?