English verb conjugation
CAN INTRODUCE

Regular verb: introduce - introduced - introduced

Affirmation

Simple form	V-ing form
I can introduce you can introduce he can introduce we can introduce you can introduce they can introduce	I can be introducing you can be introducing he can be introducing we can be introducing you can be introducing they can be introducing
Perfect	V-ing perfect
I can have introduced you can have introduced he can have introduced we can have introduced you can have introduced they can have introduced	I can have been introducing you can have been introducing he can have been introducing we can have been introducing you can have been introducing they can have been introducing

Negation

Simple form	V-ing form
I cannot introduce you cannot introduce he cannot introduce we cannot introduce you cannot introduce they cannot introduce	I cannot be introducing you cannot be introducing he cannot be introducing we cannot be introducing you cannot be introducing they cannot be introducing
Perfect	V-ing perfect
I cannot have introduced you cannot have introduced he cannot have introduced we cannot have introduced you cannot have introduced they cannot have introduced	I cannot have been introducing you cannot have been introducing he cannot have been introducing we cannot have been introducing you cannot have been introducing they cannot have been introducing

Interrogative form

Simple form	V-ing form
can I introduce? can you introduce? can he introduce? can we introduce? can you introduce? can they introduce?	can I be introducing? can you be introducing? can he be introducing? can we be introducing? can you be introducing? can they be introducing?
Perfect	V-ing perfect
can I have introduced? can you have introduced? can he have introduced? can we have introduced? can you have introduced? can they have introduced?	can I have been introducing? can you have been introducing? can he have been introducing? can we have been introducing? can you have been introducing? can they have been introducing?

Interro-negative form

Simple form	V-ing form
can I not introduce? can you not introduce? can he not introduce? can we not introduce? can you not introduce? can they not introduce?	can I not be introducing? can you not be introducing? can he not be introducing? can we not be introducing? can you not be introducing? can they not be introducing?
Perfect	V-ing perfect
can I not have introduced? can you not have introduced? can he not have introduced? can we not have introduced? can you not have introduced? can they not have introduced?	can I not have been introducing? can you not have been introducing? can he not have been introducing? can we not have been introducing? can you not have been introducing? can they not have been introducing?