English verb conjugation
CAN WAITRESS

Regular verb: waitress - waitressed - waitressed

Affirmation

Simple form	V-ing form
I can waitress you can waitress he can waitress we can waitress you can waitress they can waitress	I can be waitressing you can be waitressing he can be waitressing we can be waitressing you can be waitressing they can be waitressing
Perfect	V-ing perfect
I can have waitressed you can have waitressed he can have waitressed we can have waitressed you can have waitressed they can have waitressed	I can have been waitressing you can have been waitressing he can have been waitressing we can have been waitressing you can have been waitressing they can have been waitressing

Negation

Simple form	V-ing form
I can't waitress you can't waitress he can't waitress we can't waitress you can't waitress they can't waitress	I can't be waitressing you can't be waitressing he can't be waitressing we can't be waitressing you can't be waitressing they can't be waitressing
Perfect	V-ing perfect
I can't have waitressed you can't have waitressed he can't have waitressed we can't have waitressed you can't have waitressed they can't have waitressed	I can't have been waitressing you can't have been waitressing he can't have been waitressing we can't have been waitressing you can't have been waitressing they can't have been waitressing

Interrogative form

Simple form	V-ing form
can I waitress? can you waitress? can he waitress? can we waitress? can you waitress? can they waitress?	can I be waitressing? can you be waitressing? can he be waitressing? can we be waitressing? can you be waitressing? can they be waitressing?
Perfect	V-ing perfect
can I have waitressed? can you have waitressed? can he have waitressed? can we have waitressed? can you have waitressed? can they have waitressed?	can I have been waitressing? can you have been waitressing? can he have been waitressing? can we have been waitressing? can you have been waitressing? can they have been waitressing?

Interro-negative form

Simple form	V-ing form
can't I waitress? can't you waitress? can't he waitress? can't we waitress? can't you waitress? can't they waitress?	can't I be waitressing? can't you be waitressing? can't he be waitressing? can't we be waitressing? can't you be waitressing? can't they be waitressing?
Perfect	V-ing perfect
can't I have waitressed? can't you have waitressed? can't he have waitressed? can't we have waitressed? can't you have waitressed? can't they have waitressed?	can't I have been waitressing? can't you have been waitressing? can't he have been waitressing? can't we have been waitressing? can't you have been waitressing? can't they have been waitressing?