English verb conjugation
COULD TINSEL

Regular verb: tinsel - tinselled - tinselled

Affirmation

Simple form	V-ing form
I could tinsel you could tinsel he could tinsel we could tinsel you could tinsel they could tinsel	I could be tinselling you could be tinselling he 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 he 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 he 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 he 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 he 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 he 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 he 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 he tinsel? could we tinsel? could you tinsel? could they tinsel?	could I be tinselling? could you be tinselling? could he 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 he 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 he 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 he 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 he 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 he 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 he have been tinselling? couldn't we have been tinselling? couldn't you have been tinselling? couldn't they have been tinselling?