English verb conjugation
CAN NOTICE

Regular verb: notice - noticed - noticed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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