I can spend you can spend she can spend we can spend you can spend they can spend
V-ing form
I can be spending you can be spending she can be spending we can be spending you can be spending they can be spending
Perfect
I can have spent you can have spent she 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 she 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 she 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 she 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 she 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 she 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 she spend? can we spend? can you spend? can they spend?
V-ing form
can I be spending? can you be spending? can she be spending? can we be spending? can you be spending? can they be spending?
Perfect
can I have spent? can you have spent? can she 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 she 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 she 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 she 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 she 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 she have been spending? can't we have been spending? can't you have been spending? can't they have been spending?