English verb conjugation
CAN DETECT

Regular verb: detect - detected - detected

Affirmation

Simple form	V-ing form
I can detect you can detect she can detect we can detect you can detect they can detect	I can be detecting you can be detecting she can be detecting we can be detecting you can be detecting they can be detecting
Perfect	V-ing perfect
I can have detected you can have detected she can have detected we can have detected you can have detected they can have detected	I can have been detecting you can have been detecting she can have been detecting we can have been detecting you can have been detecting they can have been detecting

Negation

Simple form	V-ing form
I cannot detect you cannot detect she cannot detect we cannot detect you cannot detect they cannot detect	I cannot be detecting you cannot be detecting she cannot be detecting we cannot be detecting you cannot be detecting they cannot be detecting
Perfect	V-ing perfect
I cannot have detected you cannot have detected she cannot have detected we cannot have detected you cannot have detected they cannot have detected	I cannot have been detecting you cannot have been detecting she cannot have been detecting we cannot have been detecting you cannot have been detecting they cannot have been detecting

Interrogative form

Simple form	V-ing form
can I detect? can you detect? can she detect? can we detect? can you detect? can they detect?	can I be detecting? can you be detecting? can she be detecting? can we be detecting? can you be detecting? can they be detecting?
Perfect	V-ing perfect
can I have detected? can you have detected? can she have detected? can we have detected? can you have detected? can they have detected?	can I have been detecting? can you have been detecting? can she have been detecting? can we have been detecting? can you have been detecting? can they have been detecting?

Interro-negative form

Simple form	V-ing form
can I not detect? can you not detect? can she not detect? can we not detect? can you not detect? can they not detect?	can I not be detecting? can you not be detecting? can she not be detecting? can we not be detecting? can you not be detecting? can they not be detecting?
Perfect	V-ing perfect
can I not have detected? can you not have detected? can she not have detected? can we not have detected? can you not have detected? can they not have detected?	can I not have been detecting? can you not have been detecting? can she not have been detecting? can we not have been detecting? can you not have been detecting? can they not have been detecting?