English verb conjugation
COULD OBTUND

Regular verb: obtund - obtunded - obtunded

Affirmation

Simple form	V-ing form
I could obtund you could obtund he could obtund we could obtund you could obtund they could obtund	I could be obtunding you could be obtunding he could be obtunding we could be obtunding you could be obtunding they could be obtunding
Perfect	V-ing perfect
I could have obtunded you could have obtunded he could have obtunded we could have obtunded you could have obtunded they could have obtunded	I could have been obtunding you could have been obtunding he could have been obtunding we could have been obtunding you could have been obtunding they could have been obtunding

Negation

Simple form	V-ing form
I couldn't obtund you couldn't obtund he couldn't obtund we couldn't obtund you couldn't obtund they couldn't obtund	I couldn't be obtunding you couldn't be obtunding he couldn't be obtunding we couldn't be obtunding you couldn't be obtunding they couldn't be obtunding
Perfect	V-ing perfect
I couldn't have obtunded you couldn't have obtunded he couldn't have obtunded we couldn't have obtunded you couldn't have obtunded they couldn't have obtunded	I couldn't have been obtunding you couldn't have been obtunding he couldn't have been obtunding we couldn't have been obtunding you couldn't have been obtunding they couldn't have been obtunding

Interrogative form

Simple form	V-ing form
could I obtund? could you obtund? could he obtund? could we obtund? could you obtund? could they obtund?	could I be obtunding? could you be obtunding? could he be obtunding? could we be obtunding? could you be obtunding? could they be obtunding?
Perfect	V-ing perfect
could I have obtunded? could you have obtunded? could he have obtunded? could we have obtunded? could you have obtunded? could they have obtunded?	could I have been obtunding? could you have been obtunding? could he have been obtunding? could we have been obtunding? could you have been obtunding? could they have been obtunding?

Interro-negative form

Simple form	V-ing form
couldn't I obtund? couldn't you obtund? couldn't he obtund? couldn't we obtund? couldn't you obtund? couldn't they obtund?	couldn't I be obtunding? couldn't you be obtunding? couldn't he be obtunding? couldn't we be obtunding? couldn't you be obtunding? couldn't they be obtunding?
Perfect	V-ing perfect
couldn't I have obtunded? couldn't you have obtunded? couldn't he have obtunded? couldn't we have obtunded? couldn't you have obtunded? couldn't they have obtunded?	couldn't I have been obtunding? couldn't you have been obtunding? couldn't he have been obtunding? couldn't we have been obtunding? couldn't you have been obtunding? couldn't they have been obtunding?