Conjugaison du verbe anglais COULD CHALLENGE

I could challenge
you could challenge
she could challenge
we could challenge
you could challenge
they could challenge

I could be challenging
you could be challenging
she could be challenging
we could be challenging
you could be challenging
they could be challenging

I could have challenged
you could have challenged
she could have challenged
we could have challenged
you could have challenged
they could have challenged

I could have been challenging
you could have been challenging
she could have been challenging
we could have been challenging
you could have been challenging
they could have been challenging

I couldn't challenge
you couldn't challenge
she couldn't challenge
we couldn't challenge
you couldn't challenge
they couldn't challenge

I couldn't be challenging
you couldn't be challenging
she couldn't be challenging
we couldn't be challenging
you couldn't be challenging
they couldn't be challenging

I couldn't have challenged
you couldn't have challenged
she couldn't have challenged
we couldn't have challenged
you couldn't have challenged
they couldn't have challenged

I couldn't have been challenging
you couldn't have been challenging
she couldn't have been challenging
we couldn't have been challenging
you couldn't have been challenging
they couldn't have been challenging

could I challenge?
could you challenge?
could she challenge?
could we challenge?
could you challenge?
could they challenge?

could I be challenging?
could you be challenging?
could she be challenging?
could we be challenging?
could you be challenging?
could they be challenging?

could I have challenged?
could you have challenged?
could she have challenged?
could we have challenged?
could you have challenged?
could they have challenged?

could I have been challenging?
could you have been challenging?
could she have been challenging?
could we have been challenging?
could you have been challenging?
could they have been challenging?

couldn't I challenge?
couldn't you challenge?
couldn't she challenge?
couldn't we challenge?
couldn't you challenge?
couldn't they challenge?

couldn't I be challenging?
couldn't you be challenging?
couldn't she be challenging?
couldn't we be challenging?
couldn't you be challenging?
couldn't they be challenging?

couldn't I have challenged?
couldn't you have challenged?
couldn't she have challenged?
couldn't we have challenged?
couldn't you have challenged?
couldn't they have challenged?

couldn't I have been challenging?
couldn't you have been challenging?
couldn't she have been challenging?
couldn't we have been challenging?
couldn't you have been challenging?
couldn't they have been challenging?