could grope
Regular verb: grope - groped- groped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could grope
you could grope
he could grope
we could grope
you could grope
they could grope 	I could be groping
you could be groping
he could be groping
we could be groping
you could be groping
they could be groping	I could have groped
you could have groped
he could have groped
we could have groped
you could have groped
they could have groped	I could have been groping
you could have been groping
he could have been groping
we could have been groping
you could have been groping
they could have been groping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not grope
you could not grope
he could not grope
we could not grope
you could not grope
they could not grope 	I could not be groping
you could not be groping
he could not be groping
we could not be groping
you could not be groping
they could not be groping	I could not have groped
you could not have groped
he could not have groped
we could not have groped
you could not have groped
they could not have groped	I could not have been groping
you could not have been groping
he could not have been groping
we could not have been groping
you could not have been groping
they could not have been groping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I grope?
could you grope?
could he grope?
could we grope?
could you grope?
could they grope? 	could I be groping?
could you be groping?
could he be groping?
could we be groping?
could you be groping?
could they be groping? 	could I have groped?
could you have groped?
could he have groped?
could we have groped?
could you have groped?
could they have groped? 	could I have been groping?
could you have been groping?
could he have been groping?
could we have been groping?
could you have been groping?
could they have been groping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not grope?
could you not grope?
could he not grope?
could we not grope?
could you not grope?
could they not grope? 	could I not be groping?
could you not be groping?
could he not be groping?
could we not be groping?
could you not be groping?
could they not be groping? 	could I not have groped?
could you not have groped?
could he not have groped?
could we not have groped?
could you not have groped?
could they not have groped? 	could I not have been groping?
could you not have been groping?
could he not have been groping?
could we not have been groping?
could you not have been groping?
could they not have been groping?