English verb conjugation
CAN PREDATE

Regular verb: predate - predated - predated

Affirmation

Simple form	V-ing form
I can predate you can predate he can predate we can predate you can predate they can predate	I can be predating you can be predating he can be predating we can be predating you can be predating they can be predating
Perfect	V-ing perfect
I can have predated you can have predated he can have predated we can have predated you can have predated they can have predated	I can have been predating you can have been predating he can have been predating we can have been predating you can have been predating they can have been predating

Negation

Simple form	V-ing form
I can't predate you can't predate he can't predate we can't predate you can't predate they can't predate	I can't be predating you can't be predating he can't be predating we can't be predating you can't be predating they can't be predating
Perfect	V-ing perfect
I can't have predated you can't have predated he can't have predated we can't have predated you can't have predated they can't have predated	I can't have been predating you can't have been predating he can't have been predating we can't have been predating you can't have been predating they can't have been predating

Interrogative form

Simple form	V-ing form
can I predate? can you predate? can he predate? can we predate? can you predate? can they predate?	can I be predating? can you be predating? can he be predating? can we be predating? can you be predating? can they be predating?
Perfect	V-ing perfect
can I have predated? can you have predated? can he have predated? can we have predated? can you have predated? can they have predated?	can I have been predating? can you have been predating? can he have been predating? can we have been predating? can you have been predating? can they have been predating?

Interro-negative form

Simple form	V-ing form
can't I predate? can't you predate? can't he predate? can't we predate? can't you predate? can't they predate?	can't I be predating? can't you be predating? can't he be predating? can't we be predating? can't you be predating? can't they be predating?
Perfect	V-ing perfect
can't I have predated? can't you have predated? can't he have predated? can't we have predated? can't you have predated? can't they have predated?	can't I have been predating? can't you have been predating? can't he have been predating? can't we have been predating? can't you have been predating? can't they have been predating?