English verb conjugation
CAN DETECT

Regular verb: detect - detected - detected

Affirmation

Simple form	V-ing form
I can detect you can detect he can detect we can detect you can detect they can detect	I can be detecting you can be detecting he 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 he 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 he 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 he cannot detect we cannot detect you cannot detect they cannot detect	I cannot be detecting you cannot be detecting he 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 he 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 he 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 he detect? can we detect? can you detect? can they detect?	can I be detecting? can you be detecting? can he 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 he 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 he 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 he 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 he 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 he 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 he not have been detecting? can we not have been detecting? can you not have been detecting? can they not have been detecting?