I can convince you can convince he can convince we can convince you can convince they can convince
V-ing form
I can be convincing you can be convincing he can be convincing we can be convincing you can be convincing they can be convincing
Perfect
I can have convinced you can have convinced he can have convinced we can have convinced you can have convinced they can have convinced
V-ing perfect
I can have been convincing you can have been convincing he can have been convincing we can have been convincing you can have been convincing they can have been convincing
Negation
Simple form
I can't convince you can't convince he can't convince we can't convince you can't convince they can't convince
V-ing form
I can't be convincing you can't be convincing he can't be convincing we can't be convincing you can't be convincing they can't be convincing
Perfect
I can't have convinced you can't have convinced he can't have convinced we can't have convinced you can't have convinced they can't have convinced
V-ing perfect
I can't have been convincing you can't have been convincing he can't have been convincing we can't have been convincing you can't have been convincing they can't have been convincing
Interrogative form
Simple form
can I convince? can you convince? can he convince? can we convince? can you convince? can they convince?
V-ing form
can I be convincing? can you be convincing? can he be convincing? can we be convincing? can you be convincing? can they be convincing?
Perfect
can I have convinced? can you have convinced? can he have convinced? can we have convinced? can you have convinced? can they have convinced?
V-ing perfect
can I have been convincing? can you have been convincing? can he have been convincing? can we have been convincing? can you have been convincing? can they have been convincing?
Interro-negative form
Simple form
can't I convince? can't you convince? can't he convince? can't we convince? can't you convince? can't they convince?
V-ing form
can't I be convincing? can't you be convincing? can't he be convincing? can't we be convincing? can't you be convincing? can't they be convincing?
Perfect
can't I have convinced? can't you have convinced? can't he have convinced? can't we have convinced? can't you have convinced? can't they have convinced?
V-ing perfect
can't I have been convincing? can't you have been convincing? can't he have been convincing? can't we have been convincing? can't you have been convincing? can't they have been convincing?