I can job you can job he can job we can job you can job they can job
V-ing form
I can be jobbing you can be jobbing he can be jobbing we can be jobbing you can be jobbing they can be jobbing
Perfect
I can have jobbed you can have jobbed he can have jobbed we can have jobbed you can have jobbed they can have jobbed
V-ing perfect
I can have been jobbing you can have been jobbing he can have been jobbing we can have been jobbing you can have been jobbing they can have been jobbing
Negation
Simple form
I can't job you can't job he can't job we can't job you can't job they can't job
V-ing form
I can't be jobbing you can't be jobbing he can't be jobbing we can't be jobbing you can't be jobbing they can't be jobbing
Perfect
I can't have jobbed you can't have jobbed he can't have jobbed we can't have jobbed you can't have jobbed they can't have jobbed
V-ing perfect
I can't have been jobbing you can't have been jobbing he can't have been jobbing we can't have been jobbing you can't have been jobbing they can't have been jobbing
Interrogative form
Simple form
can I job? can you job? can he job? can we job? can you job? can they job?
V-ing form
can I be jobbing? can you be jobbing? can he be jobbing? can we be jobbing? can you be jobbing? can they be jobbing?
Perfect
can I have jobbed? can you have jobbed? can he have jobbed? can we have jobbed? can you have jobbed? can they have jobbed?
V-ing perfect
can I have been jobbing? can you have been jobbing? can he have been jobbing? can we have been jobbing? can you have been jobbing? can they have been jobbing?
Interro-negative form
Simple form
can't I job? can't you job? can't he job? can't we job? can't you job? can't they job?
V-ing form
can't I be jobbing? can't you be jobbing? can't he be jobbing? can't we be jobbing? can't you be jobbing? can't they be jobbing?
Perfect
can't I have jobbed? can't you have jobbed? can't he have jobbed? can't we have jobbed? can't you have jobbed? can't they have jobbed?
V-ing perfect
can't I have been jobbing? can't you have been jobbing? can't he have been jobbing? can't we have been jobbing? can't you have been jobbing? can't they have been jobbing?