English verb conjugation
COULD GROUCH

Regular verb: grouch - grouched - grouched

Affirmation

Simple form	V-ing form
I could grouch you could grouch she could grouch we could grouch you could grouch they could grouch	I could be grouching you could be grouching she could be grouching we could be grouching you could be grouching they could be grouching
Perfect	V-ing perfect
I could have grouched you could have grouched she could have grouched we could have grouched you could have grouched they could have grouched	I could have been grouching you could have been grouching she could have been grouching we could have been grouching you could have been grouching they could have been grouching

Negation

Simple form	V-ing form
I couldn't grouch you couldn't grouch she couldn't grouch we couldn't grouch you couldn't grouch they couldn't grouch	I couldn't be grouching you couldn't be grouching she couldn't be grouching we couldn't be grouching you couldn't be grouching they couldn't be grouching
Perfect	V-ing perfect
I couldn't have grouched you couldn't have grouched she couldn't have grouched we couldn't have grouched you couldn't have grouched they couldn't have grouched	I couldn't have been grouching you couldn't have been grouching she couldn't have been grouching we couldn't have been grouching you couldn't have been grouching they couldn't have been grouching

Interrogative form

Simple form	V-ing form
could I grouch? could you grouch? could she grouch? could we grouch? could you grouch? could they grouch?	could I be grouching? could you be grouching? could she be grouching? could we be grouching? could you be grouching? could they be grouching?
Perfect	V-ing perfect
could I have grouched? could you have grouched? could she have grouched? could we have grouched? could you have grouched? could they have grouched?	could I have been grouching? could you have been grouching? could she have been grouching? could we have been grouching? could you have been grouching? could they have been grouching?

Interro-negative form

Simple form	V-ing form
couldn't I grouch? couldn't you grouch? couldn't she grouch? couldn't we grouch? couldn't you grouch? couldn't they grouch?	couldn't I be grouching? couldn't you be grouching? couldn't she be grouching? couldn't we be grouching? couldn't you be grouching? couldn't they be grouching?
Perfect	V-ing perfect
couldn't I have grouched? couldn't you have grouched? couldn't she have grouched? couldn't we have grouched? couldn't you have grouched? couldn't they have grouched?	couldn't I have been grouching? couldn't you have been grouching? couldn't she have been grouching? couldn't we have been grouching? couldn't you have been grouching? couldn't they have been grouching?