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