English verb conjugation
CAN FUN

Regular verb: fun - funed - funed

Affirmation

Simple form	V-ing form
I can fun you can fun she can fun we can fun you can fun they can fun	I can be funing you can be funing she can be funing we can be funing you can be funing they can be funing
Perfect	V-ing perfect
I can have funed you can have funed she can have funed we can have funed you can have funed they can have funed	I can have been funing you can have been funing she can have been funing we can have been funing you can have been funing they can have been funing

Negation

Simple form	V-ing form
I can't fun you can't fun she can't fun we can't fun you can't fun they can't fun	I can't be funing you can't be funing she can't be funing we can't be funing you can't be funing they can't be funing
Perfect	V-ing perfect
I can't have funed you can't have funed she can't have funed we can't have funed you can't have funed they can't have funed	I can't have been funing you can't have been funing she can't have been funing we can't have been funing you can't have been funing they can't have been funing

Interrogative form

Simple form	V-ing form
can I fun? can you fun? can she fun? can we fun? can you fun? can they fun?	can I be funing? can you be funing? can she be funing? can we be funing? can you be funing? can they be funing?
Perfect	V-ing perfect
can I have funed? can you have funed? can she have funed? can we have funed? can you have funed? can they have funed?	can I have been funing? can you have been funing? can she have been funing? can we have been funing? can you have been funing? can they have been funing?

Interro-negative form

Simple form	V-ing form
can't I fun? can't you fun? can't she fun? can't we fun? can't you fun? can't they fun?	can't I be funing? can't you be funing? can't she be funing? can't we be funing? can't you be funing? can't they be funing?
Perfect	V-ing perfect
can't I have funed? can't you have funed? can't she have funed? can't we have funed? can't you have funed? can't they have funed?	can't I have been funing? can't you have been funing? can't she have been funing? can't we have been funing? can't you have been funing? can't they have been funing?