English verb conjugation
CAN ROACH

Regular verb: roach - roached - roached

Affirmation

Simple form	V-ing form
I can roach you can roach he can roach we can roach you can roach they can roach	I can be roaching you can be roaching he can be roaching we can be roaching you can be roaching they can be roaching
Perfect	V-ing perfect
I can have roached you can have roached he can have roached we can have roached you can have roached they can have roached	I can have been roaching you can have been roaching he can have been roaching we can have been roaching you can have been roaching they can have been roaching

Negation

Simple form	V-ing form
I cannot roach you cannot roach he cannot roach we cannot roach you cannot roach they cannot roach	I cannot be roaching you cannot be roaching he cannot be roaching we cannot be roaching you cannot be roaching they cannot be roaching
Perfect	V-ing perfect
I cannot have roached you cannot have roached he cannot have roached we cannot have roached you cannot have roached they cannot have roached	I cannot have been roaching you cannot have been roaching he cannot have been roaching we cannot have been roaching you cannot have been roaching they cannot have been roaching

Interrogative form

Simple form	V-ing form
can I roach? can you roach? can he roach? can we roach? can you roach? can they roach?	can I be roaching? can you be roaching? can he be roaching? can we be roaching? can you be roaching? can they be roaching?
Perfect	V-ing perfect
can I have roached? can you have roached? can he have roached? can we have roached? can you have roached? can they have roached?	can I have been roaching? can you have been roaching? can he have been roaching? can we have been roaching? can you have been roaching? can they have been roaching?

Interro-negative form

Simple form	V-ing form
can I not roach? can you not roach? can he not roach? can we not roach? can you not roach? can they not roach?	can I not be roaching? can you not be roaching? can he not be roaching? can we not be roaching? can you not be roaching? can they not be roaching?
Perfect	V-ing perfect
can I not have roached? can you not have roached? can he not have roached? can we not have roached? can you not have roached? can they not have roached?	can I not have been roaching? can you not have been roaching? can he not have been roaching? can we not have been roaching? can you not have been roaching? can they not have been roaching?