I can monitor you can monitor he can monitor we can monitor you can monitor they can monitor
V-ing form
I can be monitoring you can be monitoring he can be monitoring we can be monitoring you can be monitoring they can be monitoring
Perfect
I can have monitored you can have monitored he can have monitored we can have monitored you can have monitored they can have monitored
V-ing perfect
I can have been monitoring you can have been monitoring he can have been monitoring we can have been monitoring you can have been monitoring they can have been monitoring
Negation
Simple form
I can't monitor you can't monitor he can't monitor we can't monitor you can't monitor they can't monitor
V-ing form
I can't be monitoring you can't be monitoring he can't be monitoring we can't be monitoring you can't be monitoring they can't be monitoring
Perfect
I can't have monitored you can't have monitored he can't have monitored we can't have monitored you can't have monitored they can't have monitored
V-ing perfect
I can't have been monitoring you can't have been monitoring he can't have been monitoring we can't have been monitoring you can't have been monitoring they can't have been monitoring
Interrogative form
Simple form
can I monitor? can you monitor? can he monitor? can we monitor? can you monitor? can they monitor?
V-ing form
can I be monitoring? can you be monitoring? can he be monitoring? can we be monitoring? can you be monitoring? can they be monitoring?
Perfect
can I have monitored? can you have monitored? can he have monitored? can we have monitored? can you have monitored? can they have monitored?
V-ing perfect
can I have been monitoring? can you have been monitoring? can he have been monitoring? can we have been monitoring? can you have been monitoring? can they have been monitoring?
Interro-negative form
Simple form
can't I monitor? can't you monitor? can't he monitor? can't we monitor? can't you monitor? can't they monitor?
V-ing form
can't I be monitoring? can't you be monitoring? can't he be monitoring? can't we be monitoring? can't you be monitoring? can't they be monitoring?
Perfect
can't I have monitored? can't you have monitored? can't he have monitored? can't we have monitored? can't you have monitored? can't they have monitored?
V-ing perfect
can't I have been monitoring? can't you have been monitoring? can't he have been monitoring? can't we have been monitoring? can't you have been monitoring? can't they have been monitoring?