Coniugazione del verbo inglese
MUST COST

Verbo irregolare: cost - cost - cost

Affermazione

Forma semplice	Forma con V-ing
I must cost you must cost she must cost we must cost you must cost they must cost	I must be costing you must be costing she must be costing we must be costing you must be costing they must be costing
Perfetto	Perfetto con V-ing
I must have cost you must have cost she must have cost we must have cost you must have cost they must have cost	I must have been costing you must have been costing she must have been costing we must have been costing you must have been costing they must have been costing

Negazione

Forma semplice	Forma con V-ing
I must not cost you must not cost she must not cost we must not cost you must not cost they must not cost	I must not be costing you must not be costing she must not be costing we must not be costing you must not be costing they must not be costing
Perfetto	Perfetto con V-ing
I must not have cost you must not have cost she must not have cost we must not have cost you must not have cost they must not have cost	I must not have been costing you must not have been costing she must not have been costing we must not have been costing you must not have been costing they must not have been costing

Forma interrogativa

Forma semplice	Forma con V-ing
must I cost? must you cost? must she cost? must we cost? must you cost? must they cost?	must I be costing? must you be costing? must she be costing? must we be costing? must you be costing? must they be costing?
Perfetto	Perfetto con V-ing
must I have cost? must you have cost? must she have cost? must we have cost? must you have cost? must they have cost?	must I have been costing? must you have been costing? must she have been costing? must we have been costing? must you have been costing? must they have been costing?

Forma interro-negativa

Forma semplice	Forma con V-ing
must I not cost? must you not cost? must she not cost? must we not cost? must you not cost? must they not cost?	must I not be costing? must you not be costing? must she not be costing? must we not be costing? must you not be costing? must they not be costing?
Perfetto	Perfetto con V-ing
must I not have cost? must you not have cost? must she not have cost? must we not have cost? must you not have cost? must they not have cost?	must I not have been costing? must you not have been costing? must she not have been costing? must we not have been costing? must you not have been costing? must they not have been costing?