Sentence examples for been four types of from inspiring English sources

There have been four types of well-ordered mesophases, 2-D hexagonal p6mm, 3-D cubic ( mathrm{F}mathrm{d}overline{3}mathrm{m} ), ( mathrm{F}mathrm{m}overline{3}mathrm{m} ), and Pm3n, which can be synthesized in the presence of varied water contents of mixed water/ethanol while keeping the surfactant and carbon precursor constant.

There are four types of dengue virus.

There are four types of the virus.

There are four types of missions.

There are four types of monsters.

There are seven types of triptans.

There are three types of baccalaureates.

There are three types of agricultural activity.

There are two types of beauty spot.

There are two types of vision here.

There are two types of growth assay.