Collocations for loyal - adj.

be, remain, stay

extremely, fiercely, intensely, very
a fiercely loyal friend

absolutely, completely, totally, truly
steadfastly
his steadfastly loyal friend, Annie

incredibly

to
The troops remained loyal to the president.

Loyal is used with these nouns:
ally, clientele, companion, customer, disciple, employee, fan, follower, following, force, friend, member, opposition, reader, servant, soldier, support, supporter, troops, viewer, wife