Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I could freer you could freer she could freer we could freer you could freer they could freer
V-ing form
I could be freering you could be freering she could be freering we could be freering you could be freering they could be freering
Perfect
I could have freered you could have freered she could have freered we could have freered you could have freered they could have freered
V-ing perfect
I could have been freering you could have been freering she could have been freering we could have been freering you could have been freering they could have been freering
Negation
Simple form
I couldn't freer you couldn't freer she couldn't freer we couldn't freer you couldn't freer they couldn't freer
V-ing form
I couldn't be freering you couldn't be freering she couldn't be freering we couldn't be freering you couldn't be freering they couldn't be freering
Perfect
I couldn't have freered you couldn't have freered she couldn't have freered we couldn't have freered you couldn't have freered they couldn't have freered
V-ing perfect
I couldn't have been freering you couldn't have been freering she couldn't have been freering we couldn't have been freering you couldn't have been freering they couldn't have been freering
Interrogative form
Simple form
could I freer? could you freer? could she freer? could we freer? could you freer? could they freer?
V-ing form
could I be freering? could you be freering? could she be freering? could we be freering? could you be freering? could they be freering?
Perfect
could I have freered? could you have freered? could she have freered? could we have freered? could you have freered? could they have freered?
V-ing perfect
could I have been freering? could you have been freering? could she have been freering? could we have been freering? could you have been freering? could they have been freering?
Interro-negative form
Simple form
couldn't I freer? couldn't you freer? couldn't she freer? couldn't we freer? couldn't you freer? couldn't they freer?
V-ing form
couldn't I be freering? couldn't you be freering? couldn't she be freering? couldn't we be freering? couldn't you be freering? couldn't they be freering?
Perfect
couldn't I have freered? couldn't you have freered? couldn't she have freered? couldn't we have freered? couldn't you have freered? couldn't they have freered?
V-ing perfect
couldn't I have been freering? couldn't you have been freering? couldn't she have been freering? couldn't we have been freering? couldn't you have been freering? couldn't they have been freering?