I can collate you can collate he can collate we can collate you can collate they can collate
V-ing form
I can be collating you can be collating he can be collating we can be collating you can be collating they can be collating
Perfect
I can have collated you can have collated he can have collated we can have collated you can have collated they can have collated
V-ing perfect
I can have been collating you can have been collating he can have been collating we can have been collating you can have been collating they can have been collating
Negation
Simple form
I can't collate you can't collate he can't collate we can't collate you can't collate they can't collate
V-ing form
I can't be collating you can't be collating he can't be collating we can't be collating you can't be collating they can't be collating
Perfect
I can't have collated you can't have collated he can't have collated we can't have collated you can't have collated they can't have collated
V-ing perfect
I can't have been collating you can't have been collating he can't have been collating we can't have been collating you can't have been collating they can't have been collating
Interrogative form
Simple form
can I collate? can you collate? can he collate? can we collate? can you collate? can they collate?
V-ing form
can I be collating? can you be collating? can he be collating? can we be collating? can you be collating? can they be collating?
Perfect
can I have collated? can you have collated? can he have collated? can we have collated? can you have collated? can they have collated?
V-ing perfect
can I have been collating? can you have been collating? can he have been collating? can we have been collating? can you have been collating? can they have been collating?
Interro-negative form
Simple form
can't I collate? can't you collate? can't he collate? can't we collate? can't you collate? can't they collate?
V-ing form
can't I be collating? can't you be collating? can't he be collating? can't we be collating? can't you be collating? can't they be collating?
Perfect
can't I have collated? can't you have collated? can't he have collated? can't we have collated? can't you have collated? can't they have collated?
V-ing perfect
can't I have been collating? can't you have been collating? can't he have been collating? can't we have been collating? can't you have been collating? can't they have been collating?