English verb conjugation
CAN SIED

Regular verb: sied - sieded - sieded

Affirmation

Simple form	V-ing form
I can sied you can sied she can sied we can sied you can sied they can sied	I can be sieding you can be sieding she can be sieding we can be sieding you can be sieding they can be sieding
Perfect	V-ing perfect
I can have sieded you can have sieded she can have sieded we can have sieded you can have sieded they can have sieded	I can have been sieding you can have been sieding she can have been sieding we can have been sieding you can have been sieding they can have been sieding

Negation

Simple form	V-ing form
I can't sied you can't sied she can't sied we can't sied you can't sied they can't sied	I can't be sieding you can't be sieding she can't be sieding we can't be sieding you can't be sieding they can't be sieding
Perfect	V-ing perfect
I can't have sieded you can't have sieded she can't have sieded we can't have sieded you can't have sieded they can't have sieded	I can't have been sieding you can't have been sieding she can't have been sieding we can't have been sieding you can't have been sieding they can't have been sieding

Interrogative form

Simple form	V-ing form
can I sied? can you sied? can she sied? can we sied? can you sied? can they sied?	can I be sieding? can you be sieding? can she be sieding? can we be sieding? can you be sieding? can they be sieding?
Perfect	V-ing perfect
can I have sieded? can you have sieded? can she have sieded? can we have sieded? can you have sieded? can they have sieded?	can I have been sieding? can you have been sieding? can she have been sieding? can we have been sieding? can you have been sieding? can they have been sieding?

Interro-negative form

Simple form	V-ing form
can't I sied? can't you sied? can't she sied? can't we sied? can't you sied? can't they sied?	can't I be sieding? can't you be sieding? can't she be sieding? can't we be sieding? can't you be sieding? can't they be sieding?
Perfect	V-ing perfect
can't I have sieded? can't you have sieded? can't she have sieded? can't we have sieded? can't you have sieded? can't they have sieded?	can't I have been sieding? can't you have been sieding? can't she have been sieding? can't we have been sieding? can't you have been sieding? can't they have been sieding?