I can pickaxe you can pickaxe he can pickaxe we can pickaxe you can pickaxe they can pickaxe
V-ing form
I can be pickaxing you can be pickaxing he can be pickaxing we can be pickaxing you can be pickaxing they can be pickaxing
Perfect
I can have pickaxed you can have pickaxed he can have pickaxed we can have pickaxed you can have pickaxed they can have pickaxed
V-ing perfect
I can have been pickaxing you can have been pickaxing he can have been pickaxing we can have been pickaxing you can have been pickaxing they can have been pickaxing
Negation
Simple form
I cannot pickaxe you cannot pickaxe he cannot pickaxe we cannot pickaxe you cannot pickaxe they cannot pickaxe
V-ing form
I cannot be pickaxing you cannot be pickaxing he cannot be pickaxing we cannot be pickaxing you cannot be pickaxing they cannot be pickaxing
Perfect
I cannot have pickaxed you cannot have pickaxed he cannot have pickaxed we cannot have pickaxed you cannot have pickaxed they cannot have pickaxed
V-ing perfect
I cannot have been pickaxing you cannot have been pickaxing he cannot have been pickaxing we cannot have been pickaxing you cannot have been pickaxing they cannot have been pickaxing
Interrogative form
Simple form
can I pickaxe? can you pickaxe? can he pickaxe? can we pickaxe? can you pickaxe? can they pickaxe?
V-ing form
can I be pickaxing? can you be pickaxing? can he be pickaxing? can we be pickaxing? can you be pickaxing? can they be pickaxing?
Perfect
can I have pickaxed? can you have pickaxed? can he have pickaxed? can we have pickaxed? can you have pickaxed? can they have pickaxed?
V-ing perfect
can I have been pickaxing? can you have been pickaxing? can he have been pickaxing? can we have been pickaxing? can you have been pickaxing? can they have been pickaxing?
Interro-negative form
Simple form
can I not pickaxe? can you not pickaxe? can he not pickaxe? can we not pickaxe? can you not pickaxe? can they not pickaxe?
V-ing form
can I not be pickaxing? can you not be pickaxing? can he not be pickaxing? can we not be pickaxing? can you not be pickaxing? can they not be pickaxing?
Perfect
can I not have pickaxed? can you not have pickaxed? can he not have pickaxed? can we not have pickaxed? can you not have pickaxed? can they not have pickaxed?
V-ing perfect
can I not have been pickaxing? can you not have been pickaxing? can he not have been pickaxing? can we not have been pickaxing? can you not have been pickaxing? can they not have been pickaxing?