I can precede you can precede he can precede we can precede you can precede they can precede
V-ing form
I can be preceding you can be preceding he can be preceding we can be preceding you can be preceding they can be preceding
Perfect
I can have preceded you can have preceded he can have preceded we can have preceded you can have preceded they can have preceded
V-ing perfect
I can have been preceding you can have been preceding he can have been preceding we can have been preceding you can have been preceding they can have been preceding
Negation
Simple form
I can't precede you can't precede he can't precede we can't precede you can't precede they can't precede
V-ing form
I can't be preceding you can't be preceding he can't be preceding we can't be preceding you can't be preceding they can't be preceding
Perfect
I can't have preceded you can't have preceded he can't have preceded we can't have preceded you can't have preceded they can't have preceded
V-ing perfect
I can't have been preceding you can't have been preceding he can't have been preceding we can't have been preceding you can't have been preceding they can't have been preceding
Interrogative form
Simple form
can I precede? can you precede? can he precede? can we precede? can you precede? can they precede?
V-ing form
can I be preceding? can you be preceding? can he be preceding? can we be preceding? can you be preceding? can they be preceding?
Perfect
can I have preceded? can you have preceded? can he have preceded? can we have preceded? can you have preceded? can they have preceded?
V-ing perfect
can I have been preceding? can you have been preceding? can he have been preceding? can we have been preceding? can you have been preceding? can they have been preceding?
Interro-negative form
Simple form
can't I precede? can't you precede? can't he precede? can't we precede? can't you precede? can't they precede?
V-ing form
can't I be preceding? can't you be preceding? can't he be preceding? can't we be preceding? can't you be preceding? can't they be preceding?
Perfect
can't I have preceded? can't you have preceded? can't he have preceded? can't we have preceded? can't you have preceded? can't they have preceded?
V-ing perfect
can't I have been preceding? can't you have been preceding? can't he have been preceding? can't we have been preceding? can't you have been preceding? can't they have been preceding?