I can datestamp you can datestamp he can datestamp we can datestamp you can datestamp they can datestamp
V-ing form
I can be datestamping you can be datestamping he can be datestamping we can be datestamping you can be datestamping they can be datestamping
Perfect
I can have datestamped you can have datestamped he can have datestamped we can have datestamped you can have datestamped they can have datestamped
V-ing perfect
I can have been datestamping you can have been datestamping he can have been datestamping we can have been datestamping you can have been datestamping they can have been datestamping
Negation
Simple form
I can't datestamp you can't datestamp he can't datestamp we can't datestamp you can't datestamp they can't datestamp
V-ing form
I can't be datestamping you can't be datestamping he can't be datestamping we can't be datestamping you can't be datestamping they can't be datestamping
Perfect
I can't have datestamped you can't have datestamped he can't have datestamped we can't have datestamped you can't have datestamped they can't have datestamped
V-ing perfect
I can't have been datestamping you can't have been datestamping he can't have been datestamping we can't have been datestamping you can't have been datestamping they can't have been datestamping
Interrogative form
Simple form
can I datestamp? can you datestamp? can he datestamp? can we datestamp? can you datestamp? can they datestamp?
V-ing form
can I be datestamping? can you be datestamping? can he be datestamping? can we be datestamping? can you be datestamping? can they be datestamping?
Perfect
can I have datestamped? can you have datestamped? can he have datestamped? can we have datestamped? can you have datestamped? can they have datestamped?
V-ing perfect
can I have been datestamping? can you have been datestamping? can he have been datestamping? can we have been datestamping? can you have been datestamping? can they have been datestamping?
Interro-negative form
Simple form
can't I datestamp? can't you datestamp? can't he datestamp? can't we datestamp? can't you datestamp? can't they datestamp?
V-ing form
can't I be datestamping? can't you be datestamping? can't he be datestamping? can't we be datestamping? can't you be datestamping? can't they be datestamping?
Perfect
can't I have datestamped? can't you have datestamped? can't he have datestamped? can't we have datestamped? can't you have datestamped? can't they have datestamped?
V-ing perfect
can't I have been datestamping? can't you have been datestamping? can't he have been datestamping? can't we have been datestamping? can't you have been datestamping? can't they have been datestamping?