Irregular verb: backfit - backfit, backfitted - backfit, backfitted
Simple form | V-ing form |
I must backfit you must backfit she must backfit we must backfit you must backfit they must backfit | I must be backfiting you must be backfiting she must be backfiting we must be backfiting you must be backfiting they must be backfiting |
Perfect | V-ing perfect |
I must have backfit, backfitted you must have backfit, backfitted she must have backfit, backfitted we must have backfit, backfitted you must have backfit, backfitted they must have backfit, backfitted | I must have been backfiting you must have been backfiting she must have been backfiting we must have been backfiting you must have been backfiting they must have been backfiting |
Simple form | V-ing form |
I must not backfit you must not backfit she must not backfit we must not backfit you must not backfit they must not backfit | I must not be backfiting you must not be backfiting she must not be backfiting we must not be backfiting you must not be backfiting they must not be backfiting |
Perfect | V-ing perfect |
I must not have backfit, backfitted you must not have backfit, backfitted she must not have backfit, backfitted we must not have backfit, backfitted you must not have backfit, backfitted they must not have backfit, backfitted | I must not have been backfiting you must not have been backfiting she must not have been backfiting we must not have been backfiting you must not have been backfiting they must not have been backfiting |
Simple form | V-ing form |
must I backfit? must you backfit? must she backfit? must we backfit? must you backfit? must they backfit? | must I be backfiting? must you be backfiting? must she be backfiting? must we be backfiting? must you be backfiting? must they be backfiting? |
Perfect | V-ing perfect |
must I have backfit, backfitted? must you have backfit, backfitted? must she have backfit, backfitted? must we have backfit, backfitted? must you have backfit, backfitted? must they have backfit, backfitted? | must I have been backfiting? must you have been backfiting? must she have been backfiting? must we have been backfiting? must you have been backfiting? must they have been backfiting? |
Simple form | V-ing form |
must I not backfit? must you not backfit? must she not backfit? must we not backfit? must you not backfit? must they not backfit? | must I not be backfiting? must you not be backfiting? must she not be backfiting? must we not be backfiting? must you not be backfiting? must they not be backfiting? |
Perfect | V-ing perfect |
must I not have backfit, backfitted? must you not have backfit, backfitted? must she not have backfit, backfitted? must we not have backfit, backfitted? must you not have backfit, backfitted? must they not have backfit, backfitted? | must I not have been backfiting? must you not have been backfiting? must she not have been backfiting? must we not have been backfiting? must you not have been backfiting? must they not have been backfiting? |