English verb conjugation
COULD DAUB

Regular verb: daub - daubed - daubed

Affirmation

Simple form	V-ing form
I could daub you could daub he could daub we could daub you could daub they could daub	I could be daubing you could be daubing he could be daubing we could be daubing you could be daubing they could be daubing
Perfect	V-ing perfect
I could have daubed you could have daubed he could have daubed we could have daubed you could have daubed they could have daubed	I could have been daubing you could have been daubing he could have been daubing we could have been daubing you could have been daubing they could have been daubing

Negation

Simple form	V-ing form
I couldn't daub you couldn't daub he couldn't daub we couldn't daub you couldn't daub they couldn't daub	I couldn't be daubing you couldn't be daubing he couldn't be daubing we couldn't be daubing you couldn't be daubing they couldn't be daubing
Perfect	V-ing perfect
I couldn't have daubed you couldn't have daubed he couldn't have daubed we couldn't have daubed you couldn't have daubed they couldn't have daubed	I couldn't have been daubing you couldn't have been daubing he couldn't have been daubing we couldn't have been daubing you couldn't have been daubing they couldn't have been daubing

Interrogative form

Simple form	V-ing form
could I daub? could you daub? could he daub? could we daub? could you daub? could they daub?	could I be daubing? could you be daubing? could he be daubing? could we be daubing? could you be daubing? could they be daubing?
Perfect	V-ing perfect
could I have daubed? could you have daubed? could he have daubed? could we have daubed? could you have daubed? could they have daubed?	could I have been daubing? could you have been daubing? could he have been daubing? could we have been daubing? could you have been daubing? could they have been daubing?

Interro-negative form

Simple form	V-ing form
couldn't I daub? couldn't you daub? couldn't he daub? couldn't we daub? couldn't you daub? couldn't they daub?	couldn't I be daubing? couldn't you be daubing? couldn't he be daubing? couldn't we be daubing? couldn't you be daubing? couldn't they be daubing?
Perfect	V-ing perfect
couldn't I have daubed? couldn't you have daubed? couldn't he have daubed? couldn't we have daubed? couldn't you have daubed? couldn't they have daubed?	couldn't I have been daubing? couldn't you have been daubing? couldn't he have been daubing? couldn't we have been daubing? couldn't you have been daubing? couldn't they have been daubing?