English verb conjugation
COULD MULL

Regular verb: mull - mulled - mulled

Affirmation

Simple form	V-ing form
I could mull you could mull he could mull we could mull you could mull they could mull	I could be mulling you could be mulling he could be mulling we could be mulling you could be mulling they could be mulling
Perfect	V-ing perfect
I could have mulled you could have mulled he could have mulled we could have mulled you could have mulled they could have mulled	I could have been mulling you could have been mulling he could have been mulling we could have been mulling you could have been mulling they could have been mulling

Negation

Simple form	V-ing form
I couldn't mull you couldn't mull he couldn't mull we couldn't mull you couldn't mull they couldn't mull	I couldn't be mulling you couldn't be mulling he couldn't be mulling we couldn't be mulling you couldn't be mulling they couldn't be mulling
Perfect	V-ing perfect
I couldn't have mulled you couldn't have mulled he couldn't have mulled we couldn't have mulled you couldn't have mulled they couldn't have mulled	I couldn't have been mulling you couldn't have been mulling he couldn't have been mulling we couldn't have been mulling you couldn't have been mulling they couldn't have been mulling

Interrogative form

Simple form	V-ing form
could I mull? could you mull? could he mull? could we mull? could you mull? could they mull?	could I be mulling? could you be mulling? could he be mulling? could we be mulling? could you be mulling? could they be mulling?
Perfect	V-ing perfect
could I have mulled? could you have mulled? could he have mulled? could we have mulled? could you have mulled? could they have mulled?	could I have been mulling? could you have been mulling? could he have been mulling? could we have been mulling? could you have been mulling? could they have been mulling?

Interro-negative form

Simple form	V-ing form
couldn't I mull? couldn't you mull? couldn't he mull? couldn't we mull? couldn't you mull? couldn't they mull?	couldn't I be mulling? couldn't you be mulling? couldn't he be mulling? couldn't we be mulling? couldn't you be mulling? couldn't they be mulling?
Perfect	V-ing perfect
couldn't I have mulled? couldn't you have mulled? couldn't he have mulled? couldn't we have mulled? couldn't you have mulled? couldn't they have mulled?	couldn't I have been mulling? couldn't you have been mulling? couldn't he have been mulling? couldn't we have been mulling? couldn't you have been mulling? couldn't they have been mulling?