English verb conjugation
CAN DATABASE

Regular verb: database - databased - databased

Affirmation

Simple form	V-ing form
I can database you can database he can database we can database you can database they can database	I can be databasing you can be databasing he can be databasing we can be databasing you can be databasing they can be databasing
Perfect	V-ing perfect
I can have databased you can have databased he can have databased we can have databased you can have databased they can have databased	I can have been databasing you can have been databasing he can have been databasing we can have been databasing you can have been databasing they can have been databasing

Negation

Simple form	V-ing form
I can't database you can't database he can't database we can't database you can't database they can't database	I can't be databasing you can't be databasing he can't be databasing we can't be databasing you can't be databasing they can't be databasing
Perfect	V-ing perfect
I can't have databased you can't have databased he can't have databased we can't have databased you can't have databased they can't have databased	I can't have been databasing you can't have been databasing he can't have been databasing we can't have been databasing you can't have been databasing they can't have been databasing

Interrogative form

Simple form	V-ing form
can I database? can you database? can he database? can we database? can you database? can they database?	can I be databasing? can you be databasing? can he be databasing? can we be databasing? can you be databasing? can they be databasing?
Perfect	V-ing perfect
can I have databased? can you have databased? can he have databased? can we have databased? can you have databased? can they have databased?	can I have been databasing? can you have been databasing? can he have been databasing? can we have been databasing? can you have been databasing? can they have been databasing?

Interro-negative form

Simple form	V-ing form
can't I database? can't you database? can't he database? can't we database? can't you database? can't they database?	can't I be databasing? can't you be databasing? can't he be databasing? can't we be databasing? can't you be databasing? can't they be databasing?
Perfect	V-ing perfect
can't I have databased? can't you have databased? can't he have databased? can't we have databased? can't you have databased? can't they have databased?	can't I have been databasing? can't you have been databasing? can't he have been databasing? can't we have been databasing? can't you have been databasing? can't they have been databasing?