English verb conjugation
COULD TINSEL

Regular verb: tinsel - tinselled - tinselled

Affirmation

Simple form	V-ing form
I could tinsel you could tinsel she could tinsel we could tinsel you could tinsel they could tinsel	I could be tinselling you could be tinselling she could be tinselling we could be tinselling you could be tinselling they could be tinselling
Perfect	V-ing perfect
I could have tinselled you could have tinselled she could have tinselled we could have tinselled you could have tinselled they could have tinselled	I could have been tinselling you could have been tinselling she could have been tinselling we could have been tinselling you could have been tinselling they could have been tinselling

Negation

Simple form	V-ing form
I couldn't tinsel you couldn't tinsel she couldn't tinsel we couldn't tinsel you couldn't tinsel they couldn't tinsel	I couldn't be tinselling you couldn't be tinselling she couldn't be tinselling we couldn't be tinselling you couldn't be tinselling they couldn't be tinselling
Perfect	V-ing perfect
I couldn't have tinselled you couldn't have tinselled she couldn't have tinselled we couldn't have tinselled you couldn't have tinselled they couldn't have tinselled	I couldn't have been tinselling you couldn't have been tinselling she couldn't have been tinselling we couldn't have been tinselling you couldn't have been tinselling they couldn't have been tinselling

Interrogative form

Simple form	V-ing form
could I tinsel? could you tinsel? could she tinsel? could we tinsel? could you tinsel? could they tinsel?	could I be tinselling? could you be tinselling? could she be tinselling? could we be tinselling? could you be tinselling? could they be tinselling?
Perfect	V-ing perfect
could I have tinselled? could you have tinselled? could she have tinselled? could we have tinselled? could you have tinselled? could they have tinselled?	could I have been tinselling? could you have been tinselling? could she have been tinselling? could we have been tinselling? could you have been tinselling? could they have been tinselling?

Interro-negative form

Simple form	V-ing form
couldn't I tinsel? couldn't you tinsel? couldn't she tinsel? couldn't we tinsel? couldn't you tinsel? couldn't they tinsel?	couldn't I be tinselling? couldn't you be tinselling? couldn't she be tinselling? couldn't we be tinselling? couldn't you be tinselling? couldn't they be tinselling?
Perfect	V-ing perfect
couldn't I have tinselled? couldn't you have tinselled? couldn't she have tinselled? couldn't we have tinselled? couldn't you have tinselled? couldn't they have tinselled?	couldn't I have been tinselling? couldn't you have been tinselling? couldn't she have been tinselling? couldn't we have been tinselling? couldn't you have been tinselling? couldn't they have been tinselling?