English verb conjugation
CAN ANTEDATE

Regular verb: antedate - antedated - antedated

Affirmation

Simple form	V-ing form
I can antedate you can antedate she can antedate we can antedate you can antedate they can antedate	I can be antedating you can be antedating she can be antedating we can be antedating you can be antedating they can be antedating
Perfect	V-ing perfect
I can have antedated you can have antedated she can have antedated we can have antedated you can have antedated they can have antedated	I can have been antedating you can have been antedating she can have been antedating we can have been antedating you can have been antedating they can have been antedating

Negation

Simple form	V-ing form
I can't antedate you can't antedate she can't antedate we can't antedate you can't antedate they can't antedate	I can't be antedating you can't be antedating she can't be antedating we can't be antedating you can't be antedating they can't be antedating
Perfect	V-ing perfect
I can't have antedated you can't have antedated she can't have antedated we can't have antedated you can't have antedated they can't have antedated	I can't have been antedating you can't have been antedating she can't have been antedating we can't have been antedating you can't have been antedating they can't have been antedating

Interrogative form

Simple form	V-ing form
can I antedate? can you antedate? can she antedate? can we antedate? can you antedate? can they antedate?	can I be antedating? can you be antedating? can she be antedating? can we be antedating? can you be antedating? can they be antedating?
Perfect	V-ing perfect
can I have antedated? can you have antedated? can she have antedated? can we have antedated? can you have antedated? can they have antedated?	can I have been antedating? can you have been antedating? can she have been antedating? can we have been antedating? can you have been antedating? can they have been antedating?

Interro-negative form

Simple form	V-ing form
can't I antedate? can't you antedate? can't she antedate? can't we antedate? can't you antedate? can't they antedate?	can't I be antedating? can't you be antedating? can't she be antedating? can't we be antedating? can't you be antedating? can't they be antedating?
Perfect	V-ing perfect
can't I have antedated? can't you have antedated? can't she have antedated? can't we have antedated? can't you have antedated? can't they have antedated?	can't I have been antedating? can't you have been antedating? can't she have been antedating? can't we have been antedating? can't you have been antedating? can't they have been antedating?