English verb conjugation
CAN TAB

Regular verb: tab - tabed - tabed

Affirmation

Simple form	V-ing form
I can tab you can tab she can tab we can tab you can tab they can tab	I can be tabing you can be tabing she can be tabing we can be tabing you can be tabing they can be tabing
Perfect	V-ing perfect
I can have tabed you can have tabed she can have tabed we can have tabed you can have tabed they can have tabed	I can have been tabing you can have been tabing she can have been tabing we can have been tabing you can have been tabing they can have been tabing

Negation

Simple form	V-ing form
I can't tab you can't tab she can't tab we can't tab you can't tab they can't tab	I can't be tabing you can't be tabing she can't be tabing we can't be tabing you can't be tabing they can't be tabing
Perfect	V-ing perfect
I can't have tabed you can't have tabed she can't have tabed we can't have tabed you can't have tabed they can't have tabed	I can't have been tabing you can't have been tabing she can't have been tabing we can't have been tabing you can't have been tabing they can't have been tabing

Interrogative form

Simple form	V-ing form
can I tab? can you tab? can she tab? can we tab? can you tab? can they tab?	can I be tabing? can you be tabing? can she be tabing? can we be tabing? can you be tabing? can they be tabing?
Perfect	V-ing perfect
can I have tabed? can you have tabed? can she have tabed? can we have tabed? can you have tabed? can they have tabed?	can I have been tabing? can you have been tabing? can she have been tabing? can we have been tabing? can you have been tabing? can they have been tabing?

Interro-negative form

Simple form	V-ing form
can't I tab? can't you tab? can't she tab? can't we tab? can't you tab? can't they tab?	can't I be tabing? can't you be tabing? can't she be tabing? can't we be tabing? can't you be tabing? can't they be tabing?
Perfect	V-ing perfect
can't I have tabed? can't you have tabed? can't she have tabed? can't we have tabed? can't you have tabed? can't they have tabed?	can't I have been tabing? can't you have been tabing? can't she have been tabing? can't we have been tabing? can't you have been tabing? can't they have been tabing?