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 cannot monitor you cannot monitor he cannot monitor we cannot monitor you cannot monitor they cannot monitor
V-ing form
I cannot be monitoring you cannot be monitoring he cannot be monitoring we cannot be monitoring you cannot be monitoring they cannot be monitoring
Perfect
I cannot have monitored you cannot have monitored he cannot have monitored we cannot have monitored you cannot have monitored they cannot have monitored
V-ing perfect
I cannot have been monitoring you cannot have been monitoring he cannot have been monitoring we cannot have been monitoring you cannot have been monitoring they cannot 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 I not monitor? can you not monitor? can he not monitor? can we not monitor? can you not monitor? can they not monitor?
V-ing form
can I not be monitoring? can you not be monitoring? can he not be monitoring? can we not be monitoring? can you not be monitoring? can they not be monitoring?
Perfect
can I not have monitored? can you not have monitored? can he not have monitored? can we not have monitored? can you not have monitored? can they not have monitored?
V-ing perfect
can I not have been monitoring? can you not have been monitoring? can he not have been monitoring? can we not have been monitoring? can you not have been monitoring? can they not have been monitoring?