I can bib you can bib she can bib we can bib you can bib they can bib
V-ing form
I can be bibing you can be bibing she can be bibing we can be bibing you can be bibing they can be bibing
Perfect
I can have bibed you can have bibed she can have bibed we can have bibed you can have bibed they can have bibed
V-ing perfect
I can have been bibing you can have been bibing she can have been bibing we can have been bibing you can have been bibing they can have been bibing
Negation
Simple form
I can't bib you can't bib she can't bib we can't bib you can't bib they can't bib
V-ing form
I can't be bibing you can't be bibing she can't be bibing we can't be bibing you can't be bibing they can't be bibing
Perfect
I can't have bibed you can't have bibed she can't have bibed we can't have bibed you can't have bibed they can't have bibed
V-ing perfect
I can't have been bibing you can't have been bibing she can't have been bibing we can't have been bibing you can't have been bibing they can't have been bibing
Interrogative form
Simple form
can I bib? can you bib? can she bib? can we bib? can you bib? can they bib?
V-ing form
can I be bibing? can you be bibing? can she be bibing? can we be bibing? can you be bibing? can they be bibing?
Perfect
can I have bibed? can you have bibed? can she have bibed? can we have bibed? can you have bibed? can they have bibed?
V-ing perfect
can I have been bibing? can you have been bibing? can she have been bibing? can we have been bibing? can you have been bibing? can they have been bibing?
Interro-negative form
Simple form
can't I bib? can't you bib? can't she bib? can't we bib? can't you bib? can't they bib?
V-ing form
can't I be bibing? can't you be bibing? can't she be bibing? can't we be bibing? can't you be bibing? can't they be bibing?
Perfect
can't I have bibed? can't you have bibed? can't she have bibed? can't we have bibed? can't you have bibed? can't they have bibed?
V-ing perfect
can't I have been bibing? can't you have been bibing? can't she have been bibing? can't we have been bibing? can't you have been bibing? can't they have been bibing?