English verb conjugation
CAN IMPRESS

Regular verb: impress - impressed - impressed

Affirmation

Simple form	V-ing form
I can impress you can impress he can impress we can impress you can impress they can impress	I can be impressing you can be impressing he can be impressing we can be impressing you can be impressing they can be impressing
Perfect	V-ing perfect
I can have impressed you can have impressed he can have impressed we can have impressed you can have impressed they can have impressed	I can have been impressing you can have been impressing he can have been impressing we can have been impressing you can have been impressing they can have been impressing

Negation

Simple form	V-ing form
I can't impress you can't impress he can't impress we can't impress you can't impress they can't impress	I can't be impressing you can't be impressing he can't be impressing we can't be impressing you can't be impressing they can't be impressing
Perfect	V-ing perfect
I can't have impressed you can't have impressed he can't have impressed we can't have impressed you can't have impressed they can't have impressed	I can't have been impressing you can't have been impressing he can't have been impressing we can't have been impressing you can't have been impressing they can't have been impressing

Interrogative form

Simple form	V-ing form
can I impress? can you impress? can he impress? can we impress? can you impress? can they impress?	can I be impressing? can you be impressing? can he be impressing? can we be impressing? can you be impressing? can they be impressing?
Perfect	V-ing perfect
can I have impressed? can you have impressed? can he have impressed? can we have impressed? can you have impressed? can they have impressed?	can I have been impressing? can you have been impressing? can he have been impressing? can we have been impressing? can you have been impressing? can they have been impressing?

Interro-negative form

Simple form	V-ing form
can't I impress? can't you impress? can't he impress? can't we impress? can't you impress? can't they impress?	can't I be impressing? can't you be impressing? can't he be impressing? can't we be impressing? can't you be impressing? can't they be impressing?
Perfect	V-ing perfect
can't I have impressed? can't you have impressed? can't he have impressed? can't we have impressed? can't you have impressed? can't they have impressed?	can't I have been impressing? can't you have been impressing? can't he have been impressing? can't we have been impressing? can't you have been impressing? can't they have been impressing?