Regular verb: regain - regained - regained
Simple form | V-ing form |
I must regain you must regain she must regain we must regain you must regain they must regain | I must be regaining you must be regaining she must be regaining we must be regaining you must be regaining they must be regaining |
Perfect | V-ing perfect |
I must have regained you must have regained she must have regained we must have regained you must have regained they must have regained | I must have been regaining you must have been regaining she must have been regaining we must have been regaining you must have been regaining they must have been regaining |
Simple form | V-ing form |
I must not regain you must not regain she must not regain we must not regain you must not regain they must not regain | I must not be regaining you must not be regaining she must not be regaining we must not be regaining you must not be regaining they must not be regaining |
Perfect | V-ing perfect |
I must not have regained you must not have regained she must not have regained we must not have regained you must not have regained they must not have regained | I must not have been regaining you must not have been regaining she must not have been regaining we must not have been regaining you must not have been regaining they must not have been regaining |
Simple form | V-ing form |
must I regain? must you regain? must she regain? must we regain? must you regain? must they regain? | must I be regaining? must you be regaining? must she be regaining? must we be regaining? must you be regaining? must they be regaining? |
Perfect | V-ing perfect |
must I have regained? must you have regained? must she have regained? must we have regained? must you have regained? must they have regained? | must I have been regaining? must you have been regaining? must she have been regaining? must we have been regaining? must you have been regaining? must they have been regaining? |
Simple form | V-ing form |
must I not regain? must you not regain? must she not regain? must we not regain? must you not regain? must they not regain? | must I not be regaining? must you not be regaining? must she not be regaining? must we not be regaining? must you not be regaining? must they not be regaining? |
Perfect | V-ing perfect |
must I not have regained? must you not have regained? must she not have regained? must we not have regained? must you not have regained? must they not have regained? | must I not have been regaining? must you not have been regaining? must she not have been regaining? must we not have been regaining? must you not have been regaining? must they not have been regaining? |