English verb conjugation
COULD MONITOR

Regular verb: monitor - monitored - monitored

Affirmation

Simple form	V-ing form
I could monitor you could monitor he could monitor we could monitor you could monitor they could monitor	I could be monitoring you could be monitoring he could be monitoring we could be monitoring you could be monitoring they could be monitoring
Perfect	V-ing perfect
I could have monitored you could have monitored he could have monitored we could have monitored you could have monitored they could have monitored	I could have been monitoring you could have been monitoring he could have been monitoring we could have been monitoring you could have been monitoring they could have been monitoring

Negation

Simple form	V-ing form
I couldn't monitor you couldn't monitor he couldn't monitor we couldn't monitor you couldn't monitor they couldn't monitor	I couldn't be monitoring you couldn't be monitoring he couldn't be monitoring we couldn't be monitoring you couldn't be monitoring they couldn't be monitoring
Perfect	V-ing perfect
I couldn't have monitored you couldn't have monitored he couldn't have monitored we couldn't have monitored you couldn't have monitored they couldn't have monitored	I couldn't have been monitoring you couldn't have been monitoring he couldn't have been monitoring we couldn't have been monitoring you couldn't have been monitoring they couldn't have been monitoring

Interrogative form

Simple form	V-ing form
could I monitor? could you monitor? could he monitor? could we monitor? could you monitor? could they monitor?	could I be monitoring? could you be monitoring? could he be monitoring? could we be monitoring? could you be monitoring? could they be monitoring?
Perfect	V-ing perfect
could I have monitored? could you have monitored? could he have monitored? could we have monitored? could you have monitored? could they have monitored?	could I have been monitoring? could you have been monitoring? could he have been monitoring? could we have been monitoring? could you have been monitoring? could they have been monitoring?

Interro-negative form

Simple form	V-ing form
couldn't I monitor? couldn't you monitor? couldn't he monitor? couldn't we monitor? couldn't you monitor? couldn't they monitor?	couldn't I be monitoring? couldn't you be monitoring? couldn't he be monitoring? couldn't we be monitoring? couldn't you be monitoring? couldn't they be monitoring?
Perfect	V-ing perfect
couldn't I have monitored? couldn't you have monitored? couldn't he have monitored? couldn't we have monitored? couldn't you have monitored? couldn't they have monitored?	couldn't I have been monitoring? couldn't you have been monitoring? couldn't he have been monitoring? couldn't we have been monitoring? couldn't you have been monitoring? couldn't they have been monitoring?