English verb conjugation
COULD NOTICE

Regular verb: notice - noticed - noticed

Affirmation

Simple form	V-ing form
I could notice you could notice he could notice we could notice you could notice they could notice	I could be noticing you could be noticing he could be noticing we could be noticing you could be noticing they could be noticing
Perfect	V-ing perfect
I could have noticed you could have noticed he could have noticed we could have noticed you could have noticed they could have noticed	I could have been noticing you could have been noticing he could have been noticing we could have been noticing you could have been noticing they could have been noticing

Negation

Simple form	V-ing form
I could not notice you could not notice he could not notice we could not notice you could not notice they could not notice	I could not be noticing you could not be noticing he could not be noticing we could not be noticing you could not be noticing they could not be noticing
Perfect	V-ing perfect
I could not have noticed you could not have noticed he could not have noticed we could not have noticed you could not have noticed they could not have noticed	I could not have been noticing you could not have been noticing he could not have been noticing we could not have been noticing you could not have been noticing they could not have been noticing

Interrogative form

Simple form	V-ing form
could I notice? could you notice? could he notice? could we notice? could you notice? could they notice?	could I be noticing? could you be noticing? could he be noticing? could we be noticing? could you be noticing? could they be noticing?
Perfect	V-ing perfect
could I have noticed? could you have noticed? could he have noticed? could we have noticed? could you have noticed? could they have noticed?	could I have been noticing? could you have been noticing? could he have been noticing? could we have been noticing? could you have been noticing? could they have been noticing?

Interro-negative form

Simple form	V-ing form
could I not notice? could you not notice? could he not notice? could we not notice? could you not notice? could they not notice?	could I not be noticing? could you not be noticing? could he not be noticing? could we not be noticing? could you not be noticing? could they not be noticing?
Perfect	V-ing perfect
could I not have noticed? could you not have noticed? could he not have noticed? could we not have noticed? could you not have noticed? could they not have noticed?	could I not have been noticing? could you not have been noticing? could he not have been noticing? could we not have been noticing? could you not have been noticing? could they not have been noticing?