I can spend you can spend he can spend we can spend you can spend they can spend
V-ing form
I can be spending you can be spending he can be spending we can be spending you can be spending they can be spending
Perfect
I can have spent you can have spent he can have spent we can have spent you can have spent they can have spent
V-ing perfect
I can have been spending you can have been spending he can have been spending we can have been spending you can have been spending they can have been spending
Negation
Simple form
I can't spend you can't spend he can't spend we can't spend you can't spend they can't spend
V-ing form
I can't be spending you can't be spending he can't be spending we can't be spending you can't be spending they can't be spending
Perfect
I can't have spent you can't have spent he can't have spent we can't have spent you can't have spent they can't have spent
V-ing perfect
I can't have been spending you can't have been spending he can't have been spending we can't have been spending you can't have been spending they can't have been spending
Interrogative form
Simple form
can I spend? can you spend? can he spend? can we spend? can you spend? can they spend?
V-ing form
can I be spending? can you be spending? can he be spending? can we be spending? can you be spending? can they be spending?
Perfect
can I have spent? can you have spent? can he have spent? can we have spent? can you have spent? can they have spent?
V-ing perfect
can I have been spending? can you have been spending? can he have been spending? can we have been spending? can you have been spending? can they have been spending?
Interro-negative form
Simple form
can't I spend? can't you spend? can't he spend? can't we spend? can't you spend? can't they spend?
V-ing form
can't I be spending? can't you be spending? can't he be spending? can't we be spending? can't you be spending? can't they be spending?
Perfect
can't I have spent? can't you have spent? can't he have spent? can't we have spent? can't you have spent? can't they have spent?
V-ing perfect
can't I have been spending? can't you have been spending? can't he have been spending? can't we have been spending? can't you have been spending? can't they have been spending?